Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

18 files changed, 4723 insertions, 0 deletions

diff --git a/sc/source/ui/StatisticsDialogs/AnalysisOfVarianceDialog.cxx b/sc/source/ui/StatisticsDialogs/AnalysisOfVarianceDialog.cxx
new file mode 100644
index 000000000..f508b0217
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/AnalysisOfVarianceDialog.cxx
@@ -0,0 +1,558 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <memory>
+
+#include <rangelst.hxx>
+#include <reffact.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <AnalysisOfVarianceDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+namespace
+{
+
+struct StatisticCalculation {
+    const char* aLabelId;
+    const char* aFormula;
+    const char* aResultRangeName;
+};
+
+static StatisticCalculation const lclBasicStatistics[] =
+{
+    { STR_ANOVA_LABEL_GROUPS, nullptr,             nullptr       },
+    { STRID_CALC_COUNT,       "=COUNT(%RANGE%)",   "COUNT_RANGE" },
+    { STRID_CALC_SUM,         "=SUM(%RANGE%)",     "SUM_RANGE"   },
+    { STRID_CALC_MEAN,        "=AVERAGE(%RANGE%)", "MEAN_RANGE"  },
+    { STRID_CALC_VARIANCE,    "=VAR(%RANGE%)",     "VAR_RANGE"   },
+    { nullptr,                nullptr,             nullptr       }
+};
+
+static const char* lclAnovaLabels[] =
+{
+    STR_ANOVA_LABEL_SOURCE_OF_VARIATION,
+    STR_ANOVA_LABEL_SS,
+    STR_ANOVA_LABEL_DF,
+    STR_ANOVA_LABEL_MS,
+    STR_ANOVA_LABEL_F,
+    STR_ANOVA_LABEL_P_VALUE,
+    STR_ANOVA_LABEL_F_CRITICAL,
+    nullptr
+};
+
+static const char strWildcardRange[] = "%RANGE%";
+
+OUString lclCreateMultiParameterFormula(
+            ScRangeList&        aRangeList, const OUString& aFormulaTemplate,
+            const OUString&     aWildcard,  const ScDocument& rDocument,
+            const ScAddress::Details& aAddressDetails)
+{
+    OUStringBuffer aResult;
+    for (size_t i = 0; i < aRangeList.size(); i++)
+    {
+        OUString aRangeString(aRangeList[i].Format(rDocument, ScRefFlags::RANGE_ABS_3D, aAddressDetails));
+        OUString aFormulaString = aFormulaTemplate.replaceAll(aWildcard, aRangeString);
+        aResult.append(aFormulaString);
+        if(i != aRangeList.size() - 1) // Not Last
+            aResult.append(";");
+    }
+    return aResult.makeStringAndClear();
+}
+
+void lclMakeSubRangesList(ScRangeList& rRangeList, const ScRange& rInputRange, ScStatisticsInputOutputDialog::GroupedBy aGroupedBy)
+{
+    std::unique_ptr<DataRangeIterator> pIterator;
+    if (aGroupedBy == ScStatisticsInputOutputDialog::BY_COLUMN)
+        pIterator.reset(new DataRangeByColumnIterator(rInputRange));
+    else
+        pIterator.reset(new DataRangeByRowIterator(rInputRange));
+
+    for( ; pIterator->hasNext(); pIterator->next() )
+    {
+        ScRange aRange = pIterator->get();
+        rRangeList.push_back(aRange);
+    }
+}
+
+}
+
+ScAnalysisOfVarianceDialog::ScAnalysisOfVarianceDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData )
+    : ScStatisticsInputOutputDialog(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/analysisofvariancedialog.ui",
+            "AnalysisOfVarianceDialog")
+    , meFactor(SINGLE_FACTOR)
+    , mxAlphaField(m_xBuilder->weld_spin_button("alpha-spin"))
+    , mxSingleFactorRadio(m_xBuilder->weld_radio_button("radio-single-factor"))
+    , mxTwoFactorRadio(m_xBuilder->weld_radio_button("radio-two-factor"))
+    , mxRowsPerSampleField(m_xBuilder->weld_spin_button("rows-per-sample-spin"))
+{
+    mxSingleFactorRadio->connect_toggled( LINK( this, ScAnalysisOfVarianceDialog, FactorChanged ) );
+    mxTwoFactorRadio->connect_toggled( LINK( this, ScAnalysisOfVarianceDialog, FactorChanged ) );
+
+    mxSingleFactorRadio->set_active(true);
+    mxTwoFactorRadio->set_active(false);
+
+    FactorChanged();
+}
+
+ScAnalysisOfVarianceDialog::~ScAnalysisOfVarianceDialog()
+{
+}
+
+void ScAnalysisOfVarianceDialog::Close()
+{
+    DoClose( ScAnalysisOfVarianceDialogWrapper::GetChildWindowId() );
+}
+
+const char* ScAnalysisOfVarianceDialog::GetUndoNameId()
+{
+    return STR_ANALYSIS_OF_VARIANCE_UNDO_NAME;
+}
+
+IMPL_LINK_NOARG( ScAnalysisOfVarianceDialog, FactorChanged, weld::ToggleButton&, void )
+{
+    FactorChanged();
+}
+
+void ScAnalysisOfVarianceDialog::FactorChanged()
+{
+    if (mxSingleFactorRadio->get_active())
+    {
+        mxGroupByRowsRadio->set_sensitive(true);
+        mxGroupByColumnsRadio->set_sensitive(true);
+        mxRowsPerSampleField->set_sensitive(false);
+        meFactor = SINGLE_FACTOR;
+    }
+    else if (mxTwoFactorRadio->get_active())
+    {
+        mxGroupByRowsRadio->set_sensitive(false);
+        mxGroupByColumnsRadio->set_sensitive(false);
+        mxRowsPerSampleField->set_sensitive(false); // Rows per sample not yet implemented
+        meFactor = TWO_FACTOR;
+    }
+}
+
+void ScAnalysisOfVarianceDialog::RowColumn(ScRangeList& rRangeList, AddressWalkerWriter& aOutput, FormulaTemplate& aTemplate,
+                                           const OUString& sFormula, GroupedBy aGroupedBy, ScRange* pResultRange)
+{
+    if (pResultRange != nullptr)
+        pResultRange->aStart = aOutput.current();
+    if (!sFormula.isEmpty())
+    {
+        for (size_t i = 0; i < rRangeList.size(); i++)
+        {
+            ScRange const & rRange = rRangeList[i];
+            aTemplate.setTemplate(sFormula);
+            aTemplate.applyRange(strWildcardRange, rRange);
+            aOutput.writeFormula(aTemplate.getTemplate());
+            if (pResultRange != nullptr)
+                pResultRange->aEnd = aOutput.current();
+            aOutput.nextRow();
+        }
+    }
+    else
+    {
+        const char* pLabelId = (aGroupedBy == BY_COLUMN) ? STR_COLUMN_LABEL_TEMPLATE : STR_ROW_LABEL_TEMPLATE;
+        OUString aLabelTemplate(ScResId(pLabelId));
+
+        for (size_t i = 0; i < rRangeList.size(); i++)
+        {
+            aTemplate.setTemplate(aLabelTemplate);
+            aTemplate.applyNumber("%NUMBER%", i + 1);
+            aOutput.writeString(aTemplate.getTemplate());
+            if (pResultRange != nullptr)
+                pResultRange->aEnd = aOutput.current();
+            aOutput.nextRow();
+        }
+    }
+}
+
+void ScAnalysisOfVarianceDialog::AnovaSingleFactor(AddressWalkerWriter& output, FormulaTemplate& aTemplate)
+{
+    output.writeBoldString(ScResId(STR_ANOVA_SINGLE_FACTOR_LABEL));
+    output.newLine();
+
+    double aAlphaValue = mxAlphaField->get_value() / 100.0;
+    output.writeString(ScResId(STR_LABEL_ALPHA));
+    output.nextColumn();
+    output.writeValue(aAlphaValue);
+    aTemplate.autoReplaceAddress("%ALPHA%", output.current());
+    output.newLine();
+    output.newLine();
+
+    // Write labels
+    for(sal_Int32 i = 0; lclBasicStatistics[i].aLabelId; i++)
+    {
+        output.writeString(ScResId(lclBasicStatistics[i].aLabelId));
+        output.nextColumn();
+    }
+    output.newLine();
+
+    // Collect aRangeList
+    ScRangeList aRangeList;
+    lclMakeSubRangesList(aRangeList, mInputRange, mGroupedBy);
+
+    output.push();
+
+    // Write values
+    for(sal_Int32 i = 0; lclBasicStatistics[i].aLabelId; i++)
+    {
+        output.resetRow();
+        ScRange aResultRange;
+        OUString sFormula = OUString::createFromAscii(lclBasicStatistics[i].aFormula);
+        RowColumn(aRangeList, output, aTemplate, sFormula, mGroupedBy, &aResultRange);
+        output.nextColumn();
+        if (lclBasicStatistics[i].aResultRangeName != nullptr)
+        {
+            OUString sResultRangeName = OUString::createFromAscii(lclBasicStatistics[i].aResultRangeName);
+            aTemplate.autoReplaceRange("%" + sResultRangeName + "%", aResultRange);
+        }
+    }
+
+    output.nextRow(); // Blank row
+
+    // Write ANOVA labels
+    output.resetColumn();
+    for(sal_Int32 i = 0; lclAnovaLabels[i]; i++)
+    {
+        output.writeString(ScResId(lclAnovaLabels[i]));
+        output.nextColumn();
+    }
+    output.nextRow();
+
+    aTemplate.autoReplaceRange("%FIRST_COLUMN%", aRangeList[0]);
+
+    // Between Groups
+    {
+        // Label
+        output.resetColumn();
+        output.writeString(ScResId(STR_ANOVA_LABEL_BETWEEN_GROUPS));
+        output.nextColumn();
+
+        // Sum of Squares
+        aTemplate.setTemplate("=SUMPRODUCT(%SUM_RANGE%;%MEAN_RANGE%)-SUM(%SUM_RANGE%)^2/SUM(%COUNT_RANGE%)");
+        aTemplate.autoReplaceAddress("%BETWEEN_SS%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // Degree of freedom
+        aTemplate.setTemplate("=COUNT(%SUM_RANGE%)-1");
+        aTemplate.autoReplaceAddress("%BETWEEN_DF%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // MS
+        aTemplate.setTemplate("=%BETWEEN_SS% / %BETWEEN_DF%");
+        aTemplate.autoReplaceAddress("%BETWEEN_MS%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // F
+        aTemplate.setTemplate("=%BETWEEN_MS% / %WITHIN_MS%");
+        aTemplate.applyAddress("%WITHIN_MS%",  output.current(-1, 1));
+        aTemplate.autoReplaceAddress("%F_VAL%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // P-value
+        aTemplate.setTemplate("=FDIST(%F_VAL%; %BETWEEN_DF%; %WITHIN_DF%");
+        aTemplate.applyAddress("%WITHIN_DF%",   output.current(-3, 1));
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // F critical
+        aTemplate.setTemplate("=FINV(%ALPHA%; %BETWEEN_DF%; %WITHIN_DF%");
+        aTemplate.applyAddress("%WITHIN_DF%",  output.current(-4, 1));
+        output.writeFormula(aTemplate.getTemplate());
+    }
+    output.nextRow();
+
+    // Within Groups
+    {
+        // Label
+        output.resetColumn();
+        output.writeString(ScResId(STR_ANOVA_LABEL_WITHIN_GROUPS));
+        output.nextColumn();
+
+        // Sum of Squares
+        OUString aSSPart = lclCreateMultiParameterFormula(aRangeList, "DEVSQ(%RANGE%)", strWildcardRange, mDocument, mAddressDetails);
+        aTemplate.setTemplate("=SUM(%RANGE%)");
+        aTemplate.applyString(strWildcardRange, aSSPart);
+        aTemplate.autoReplaceAddress("%WITHIN_SS%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // Degree of freedom
+        aTemplate.setTemplate("=SUM(%COUNT_RANGE%)-COUNT(%COUNT_RANGE%)");
+        aTemplate.autoReplaceAddress("%WITHIN_DF%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // MS
+        aTemplate.setTemplate("=%WITHIN_SS% / %WITHIN_DF%");
+        output.writeFormula(aTemplate.getTemplate());
+    }
+    output.nextRow();
+
+    // Total
+    {
+        // Label
+        output.resetColumn();
+        output.writeString(ScResId(STR_ANOVA_LABEL_TOTAL));
+        output.nextColumn();
+
+        // Sum of Squares
+        aTemplate.setTemplate("=DEVSQ(%RANGE_LIST%)");
+        aTemplate.applyRangeList("%RANGE_LIST%", aRangeList, ';');
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // Degree of freedom
+        aTemplate.setTemplate("=SUM(%COUNT_RANGE%) - 1");
+        output.writeFormula(aTemplate.getTemplate());
+    }
+    output.nextRow();
+}
+
+void ScAnalysisOfVarianceDialog::AnovaTwoFactor(AddressWalkerWriter& output, FormulaTemplate& aTemplate)
+{
+    output.writeBoldString(ScResId(STR_ANOVA_TWO_FACTOR_LABEL));
+    output.newLine();
+
+    double aAlphaValue = mxAlphaField->get_value() / 100.0;
+    output.writeString("Alpha");
+    output.nextColumn();
+    output.writeValue(aAlphaValue);
+    aTemplate.autoReplaceAddress("%ALPHA%", output.current());
+    output.newLine();
+    output.newLine();
+
+    // Write labels
+    for(sal_Int32 i = 0; lclBasicStatistics[i].aLabelId; i++)
+    {
+        output.writeString(ScResId(lclBasicStatistics[i].aLabelId));
+        output.nextColumn();
+    }
+    output.newLine();
+
+    ScRangeList aColumnRangeList;
+    ScRangeList aRowRangeList;
+
+    lclMakeSubRangesList(aColumnRangeList, mInputRange, BY_COLUMN);
+    lclMakeSubRangesList(aRowRangeList, mInputRange, BY_ROW);
+
+    // Write ColumnX values
+    output.push();
+    for(sal_Int32 i = 0; lclBasicStatistics[i].aLabelId; i++)
+    {
+        output.resetRow();
+        ScRange aResultRange;
+        OUString sFormula = OUString::createFromAscii(lclBasicStatistics[i].aFormula);
+        RowColumn(aColumnRangeList, output, aTemplate, sFormula, BY_COLUMN, &aResultRange);
+        if (lclBasicStatistics[i].aResultRangeName != nullptr)
+        {
+            OUString sResultRangeName = OUString::createFromAscii(lclBasicStatistics[i].aResultRangeName);
+            aTemplate.autoReplaceRange("%" + sResultRangeName + "_COLUMN%", aResultRange);
+        }
+        output.nextColumn();
+    }
+    output.newLine();
+
+    // Write RowX values
+    output.push();
+    for(sal_Int32 i = 0; lclBasicStatistics[i].aLabelId; i++)
+    {
+        output.resetRow();
+        ScRange aResultRange;
+        OUString sFormula = OUString::createFromAscii(lclBasicStatistics[i].aFormula);
+        RowColumn(aRowRangeList, output, aTemplate, sFormula, BY_ROW, &aResultRange);
+
+        if (lclBasicStatistics[i].aResultRangeName != nullptr)
+        {
+            OUString sResultRangeName = OUString::createFromAscii(lclBasicStatistics[i].aResultRangeName);
+            aTemplate.autoReplaceRange("%" + sResultRangeName + "_ROW%", aResultRange);
+        }
+        output.nextColumn();
+    }
+    output.newLine();
+
+    // Write ANOVA labels
+    for(sal_Int32 i = 0; lclAnovaLabels[i]; i++)
+    {
+        output.writeString(ScResId(lclAnovaLabels[i]));
+        output.nextColumn();
+    }
+    output.nextRow();
+
+    // Setup auto-replace strings
+    aTemplate.autoReplaceRange(strWildcardRange, mInputRange);
+    aTemplate.autoReplaceRange("%FIRST_COLUMN%", aColumnRangeList[0]);
+    aTemplate.autoReplaceRange("%FIRST_ROW%",    aRowRangeList[0]);
+
+    // Rows
+    {
+        // Label
+        output.resetColumn();
+        output.writeString("Rows");
+        output.nextColumn();
+
+        // Sum of Squares
+        aTemplate.setTemplate("=SUMPRODUCT(%SUM_RANGE_ROW%;%MEAN_RANGE_ROW%) - SUM(%RANGE%)^2 / COUNT(%RANGE%)");
+        aTemplate.autoReplaceAddress("%ROW_SS%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // Degree of freedom
+        aTemplate.setTemplate("=MAX(%COUNT_RANGE_COLUMN%) - 1");
+        aTemplate.autoReplaceAddress("%ROW_DF%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // MS
+        aTemplate.setTemplate("=%ROW_SS% / %ROW_DF%");
+        aTemplate.autoReplaceAddress("%MS_ROW%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // F
+        aTemplate.setTemplate("=%MS_ROW% / %MS_ERROR%");
+        aTemplate.applyAddress("%MS_ERROR%", output.current(-1, 2));
+        aTemplate.autoReplaceAddress("%F_ROW%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // P-value
+        aTemplate.setTemplate("=FDIST(%F_ROW%; %ROW_DF%; %ERROR_DF%");
+        aTemplate.applyAddress("%ERROR_DF%",   output.current(-3, 2));
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // F critical
+        aTemplate.setTemplate("=FINV(%ALPHA%; %ROW_DF%; %ERROR_DF%");
+        aTemplate.applyAddress("%ERROR_DF%",  output.current(-4, 2));
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+    }
+    output.nextRow();
+
+    // Columns
+    {
+        // Label
+        output.resetColumn();
+        output.writeString("Columns");
+        output.nextColumn();
+
+        // Sum of Squares
+        aTemplate.setTemplate("=SUMPRODUCT(%SUM_RANGE_COLUMN%;%MEAN_RANGE_COLUMN%) - SUM(%RANGE%)^2 / COUNT(%RANGE%)");
+        aTemplate.autoReplaceAddress("%COLUMN_SS%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // Degree of freedom
+        aTemplate.setTemplate("=MAX(%COUNT_RANGE_ROW%) - 1");
+        aTemplate.autoReplaceAddress("%COLUMN_DF%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // MS
+        aTemplate.setTemplate("=%COLUMN_SS% / %COLUMN_DF%");
+        aTemplate.autoReplaceAddress("%MS_COLUMN%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // F
+        aTemplate.setTemplate("=%MS_COLUMN% / %MS_ERROR%");
+        aTemplate.applyAddress("%MS_ERROR%", output.current(-1, 1));
+        aTemplate.autoReplaceAddress("%F_COLUMN%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+         // P-value
+        aTemplate.setTemplate("=FDIST(%F_COLUMN%; %COLUMN_DF%; %ERROR_DF%");
+        aTemplate.applyAddress("%ERROR_DF%",   output.current(-3, 1));
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // F critical
+        aTemplate.setTemplate("=FINV(%ALPHA%; %COLUMN_DF%; %ERROR_DF%");
+        aTemplate.applyAddress("%ERROR_DF%",  output.current(-4, 1));
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+    }
+    output.nextRow();
+
+    // Error
+    {
+        // Label
+        output.resetColumn();
+        output.writeString("Error");
+        output.nextColumn();
+
+        // Sum of Squares
+        aTemplate.setTemplate("=SUMSQ(%RANGE%)+SUM(%RANGE%)^2/COUNT(%RANGE%) - (SUMPRODUCT(%SUM_RANGE_ROW%;%MEAN_RANGE_ROW%) + SUMPRODUCT(%SUM_RANGE_COLUMN%;%MEAN_RANGE_COLUMN%))");
+        aTemplate.autoReplaceAddress("%ERROR_SS%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // Degree of freedom
+        aTemplate.setTemplate("=%TOTAL_DF% - %ROW_DF% - %COLUMN_DF%");
+        aTemplate.applyAddress("%TOTAL_DF%", output.current(0,1));
+        aTemplate.autoReplaceAddress("%ERROR_DF%", output.current());
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // MS
+        aTemplate.setTemplate("=%ERROR_SS% / %ERROR_DF%");
+        output.writeFormula(aTemplate.getTemplate());
+    }
+    output.nextRow();
+
+     // Total
+    {
+        // Label
+        output.resetColumn();
+        output.writeString("Total");
+        output.nextColumn();
+
+        // Sum of Squares
+        aTemplate.setTemplate("=SUM(%ROW_SS%;%COLUMN_SS%;%ERROR_SS%)");
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+
+        // Degree of freedom
+        aTemplate.setTemplate("=COUNT(%RANGE%)-1");
+        output.writeFormula(aTemplate.getTemplate());
+        output.nextColumn();
+    }
+}
+
+ScRange ScAnalysisOfVarianceDialog::ApplyOutput(ScDocShell* pDocShell)
+{
+    AddressWalkerWriter output(mOutputAddress, pDocShell, &mDocument,
+        formula::FormulaGrammar::mergeToGrammar(formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+
+    if (meFactor == SINGLE_FACTOR)
+    {
+        AnovaSingleFactor(output, aTemplate);
+    }
+    else if (meFactor == TWO_FACTOR)
+    {
+        AnovaTwoFactor(output, aTemplate);
+    }
+
+    return ScRange(output.mMinimumAddress, output.mMaximumAddress);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/ChiSquareTestDialog.cxx b/sc/source/ui/StatisticsDialogs/ChiSquareTestDialog.cxx
new file mode 100644
index 000000000..e2de2db82
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/ChiSquareTestDialog.cxx
@@ -0,0 +1,91 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <reffact.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <ChiSquareTestDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+ScChiSquareTestDialog::ScChiSquareTestDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData ) :
+    ScStatisticsInputOutputDialog(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/chisquaretestdialog.ui", "ChiSquareTestDialog")
+{
+    m_xDialog->set_title(ScResId(STR_CHI_SQUARE_TEST));
+}
+
+ScChiSquareTestDialog::~ScChiSquareTestDialog()
+{}
+
+void ScChiSquareTestDialog::Close()
+{
+    DoClose(ScChiSquareTestDialogWrapper::GetChildWindowId());
+}
+
+const char* ScChiSquareTestDialog::GetUndoNameId()
+{
+    return STR_CHI_SQUARE_TEST;
+}
+
+ScRange ScChiSquareTestDialog::ApplyOutput(ScDocShell* pDocShell)
+{
+    AddressWalkerWriter aOutput(mOutputAddress, pDocShell, &mDocument,
+            formula::FormulaGrammar::mergeToGrammar( formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+
+    aTemplate.autoReplaceRange("%RANGE%", mInputRange);
+
+    aOutput.writeBoldString(ScResId(STR_CHI_SQUARE_TEST));
+    aOutput.newLine();
+
+    // Alpha
+    aOutput.writeString(ScResId(STR_LABEL_ALPHA));
+    aOutput.nextColumn();
+    aOutput.writeValue(0.05);
+    aTemplate.autoReplaceAddress("%ALPHA%", aOutput.current());
+    aOutput.newLine();
+
+    // DF
+    aOutput.writeString(ScResId(STR_DEGREES_OF_FREEDOM_LABEL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=(COLUMNS(%RANGE%) - 1) * (ROWS(%RANGE%) - 1)");
+    aTemplate.autoReplaceAddress("%DEGREES_OF_FREEDOM%", aOutput.current());
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // p Value
+    aOutput.writeString(ScResId(STR_P_VALUE_LABEL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=CHITEST(%RANGE%; MMULT(MMULT(%RANGE%;TRANSPOSE(IF(COLUMN(%RANGE%))));MMULT(TRANSPOSE(IF(ROW(%RANGE%)));%RANGE%)) / SUM(%RANGE%))");
+    aTemplate.autoReplaceAddress("%P_VALUE%", aOutput.current());
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // Test Statistic
+    aOutput.writeString(ScResId(STR_TEST_STATISTIC_LABEL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=CHIINV(%P_VALUE%; %DEGREES_OF_FREEDOM%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // Critical value
+    aOutput.writeString(ScResId(STR_CRITICAL_VALUE_LABEL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=CHIINV(%ALPHA%; %DEGREES_OF_FREEDOM%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    return ScRange(aOutput.mMinimumAddress, aOutput.mMaximumAddress);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/CorrelationDialog.cxx b/sc/source/ui/StatisticsDialogs/CorrelationDialog.cxx
new file mode 100644
index 000000000..5ecd359ab
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/CorrelationDialog.cxx
@@ -0,0 +1,39 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <reffact.hxx>
+#include <CorrelationDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+ScCorrelationDialog::ScCorrelationDialog(
+                        SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                        weld::Window* pParent, ScViewData* pViewData ) :
+    ScMatrixComparisonGenerator(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/correlationdialog.ui", "CorrelationDialog")
+{}
+
+void ScCorrelationDialog::Close()
+{
+    DoClose(ScCorrelationDialogWrapper::GetChildWindowId());
+}
+
+OUString ScCorrelationDialog::getLabel()
+{
+    return ScResId(STR_CORRELATION_LABEL);
+}
+
+OUString ScCorrelationDialog::getTemplate()
+{
+    return "=CORREL(%VAR1%; %VAR2%)";
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/CovarianceDialog.cxx b/sc/source/ui/StatisticsDialogs/CovarianceDialog.cxx
new file mode 100644
index 000000000..51b55f4e1
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/CovarianceDialog.cxx
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <reffact.hxx>
+#include <CovarianceDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+ScCovarianceDialog::ScCovarianceDialog(
+                        SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                        weld::Window* pParent, ScViewData* pViewData ) :
+    ScMatrixComparisonGenerator(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/covariancedialog.ui", "CovarianceDialog")
+{}
+
+const char* ScCovarianceDialog::GetUndoNameId()
+{
+    return STR_COVARIANCE_UNDO_NAME;
+}
+
+void ScCovarianceDialog::Close()
+{
+    DoClose( ScCovarianceDialogWrapper::GetChildWindowId() );
+}
+
+OUString ScCovarianceDialog::getLabel()
+{
+    return ScResId(STR_COVARIANCE_LABEL);
+}
+
+OUString ScCovarianceDialog::getTemplate()
+{
+    return "=COVAR(%VAR1%; %VAR2%)";
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/DescriptiveStatisticsDialog.cxx b/sc/source/ui/StatisticsDialogs/DescriptiveStatisticsDialog.cxx
new file mode 100644
index 000000000..434271d0a
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/DescriptiveStatisticsDialog.cxx
@@ -0,0 +1,132 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <memory>
+
+#include <reffact.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <DescriptiveStatisticsDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+namespace
+{
+
+struct StatisticCalculation {
+    const char* aCalculationNameId;
+    const char* aFormula;
+};
+
+static const StatisticCalculation lclCalcDefinitions[] =
+{
+    { STRID_CALC_MEAN,           "=AVERAGE(%RANGE%)" },
+    { STRID_CALC_STD_ERROR,      "=SQRT(VAR(%RANGE%)/COUNT(%RANGE%))"},
+    { STRID_CALC_MODE,           "=MODE(%RANGE%)"},
+    { STRID_CALC_MEDIAN,         "=MEDIAN(%RANGE%)"},
+    { STRID_CALC_FIRST_QUARTILE, "=QUARTILE(%RANGE%; 1)" },
+    { STRID_CALC_THIRD_QUARTILE, "=QUARTILE(%RANGE%; 3)" },
+    { STRID_CALC_VARIANCE,       "=VAR(%RANGE%)"},
+    { STRID_CALC_STD_DEVIATION,  "=STDEV(%RANGE%)"},
+    { STRID_CALC_KURTOSIS,       "=KURT(%RANGE%)"},
+    { STRID_CALC_SKEWNESS,       "=SKEW(%RANGE%)"},
+    { STRID_CALC_RANGE,          "=MAX(%RANGE%)-MIN(%RANGE%)"},
+    { STRID_CALC_MIN,            "=MIN(%RANGE%)"},
+    { STRID_CALC_MAX,            "=MAX(%RANGE%)"},
+    { STRID_CALC_SUM,            "=SUM(%RANGE%)"},
+    { STRID_CALC_COUNT,          "=COUNT(%RANGE%)" },
+    { nullptr,                   nullptr }
+};
+
+}
+
+ScDescriptiveStatisticsDialog::ScDescriptiveStatisticsDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData ) :
+    ScStatisticsInputOutputDialog(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/descriptivestatisticsdialog.ui",
+            "DescriptiveStatisticsDialog")
+{}
+
+ScDescriptiveStatisticsDialog::~ScDescriptiveStatisticsDialog()
+{}
+
+void ScDescriptiveStatisticsDialog::Close()
+{
+    DoClose( ScDescriptiveStatisticsDialogWrapper::GetChildWindowId() );
+}
+
+const char* ScDescriptiveStatisticsDialog::GetUndoNameId()
+{
+    return STR_DESCRIPTIVE_STATISTICS_UNDO_NAME;
+}
+
+ScRange ScDescriptiveStatisticsDialog::ApplyOutput(ScDocShell* pDocShell)
+{
+    AddressWalkerWriter aOutput(mOutputAddress, pDocShell, &mDocument,
+            formula::FormulaGrammar::mergeToGrammar( formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+
+    std::unique_ptr<DataRangeIterator> pIterator;
+    if (mGroupedBy == BY_COLUMN)
+        pIterator.reset(new DataRangeByColumnIterator(mInputRange));
+    else
+        pIterator.reset(new DataRangeByRowIterator(mInputRange));
+
+    aOutput.nextColumn();
+
+    // Use explicit sheet name in case the input and output are on different sheets.
+    bool b3DAddress = mInputRange.aStart.Tab() != mOutputAddress.Tab();
+
+    // Write column/row labels
+    for( ; pIterator->hasNext(); pIterator->next() )
+    {
+        if (mGroupedBy == BY_COLUMN)
+            aTemplate.setTemplate(ScResId(STR_COLUMN_LABEL_TEMPLATE));
+        else
+            aTemplate.setTemplate(ScResId(STR_ROW_LABEL_TEMPLATE));
+
+        aTemplate.applyNumber("%NUMBER%", pIterator->index() + 1);
+        aOutput.writeBoldString(aTemplate.getTemplate());
+        aOutput.nextColumn();
+    }
+    aOutput.nextRow();
+    aOutput.resetColumn();
+    aOutput.push();
+
+    // Write calculation labels
+    for(sal_Int32 i = 0; lclCalcDefinitions[i].aFormula != nullptr; i++)
+    {
+        OUString aLabel(ScResId(lclCalcDefinitions[i].aCalculationNameId));
+        aOutput.writeString(aLabel);
+        aOutput.nextRow();
+    }
+    aOutput.nextColumn();
+
+    pIterator->reset();
+
+    for( ; pIterator->hasNext(); pIterator->next() )
+    {
+        aOutput.resetRow();
+
+        for(sal_Int32 i = 0; lclCalcDefinitions[i].aFormula != nullptr; i++)
+        {
+            aTemplate.setTemplate(lclCalcDefinitions[i].aFormula);
+            aTemplate.applyRange("%RANGE%", pIterator->get(), b3DAddress);
+            aOutput.writeFormula(aTemplate.getTemplate());
+            aOutput.nextRow();
+        }
+        aOutput.nextColumn();
+    }
+
+    return ScRange(aOutput.mMinimumAddress, aOutput.mMaximumAddress);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/ExponentialSmoothingDialog.cxx b/sc/source/ui/StatisticsDialogs/ExponentialSmoothingDialog.cxx
new file mode 100644
index 000000000..8e87c11fb
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/ExponentialSmoothingDialog.cxx
@@ -0,0 +1,120 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <memory>
+
+#include <reffact.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <ExponentialSmoothingDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+ScExponentialSmoothingDialog::ScExponentialSmoothingDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData )
+    : ScStatisticsInputOutputDialog(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/exponentialsmoothingdialog.ui",
+            "ExponentialSmoothingDialog")
+    , mxSmoothingFactor(m_xBuilder->weld_spin_button("smoothing-factor-spin"))
+{
+}
+
+ScExponentialSmoothingDialog::~ScExponentialSmoothingDialog()
+{
+}
+
+void ScExponentialSmoothingDialog::Close()
+{
+    DoClose( ScExponentialSmoothingDialogWrapper::GetChildWindowId() );
+}
+
+const char* ScExponentialSmoothingDialog::GetUndoNameId()
+{
+    return STR_EXPONENTIAL_SMOOTHING_UNDO_NAME;
+}
+
+ScRange ScExponentialSmoothingDialog::ApplyOutput(ScDocShell* pDocShell)
+{
+    AddressWalkerWriter output(mOutputAddress, pDocShell, &mDocument,
+            formula::FormulaGrammar::mergeToGrammar( formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+
+    // Smoothing factor
+    double aSmoothingFactor = mxSmoothingFactor->get_value() / 100.0;
+
+    // Alpha
+    output.writeBoldString(ScResId(STR_LABEL_ALPHA));
+    output.nextRow();
+
+    // Alpha Value
+    ScAddress aSmoothingFactorAddress = output.current();
+    output.writeValue(aSmoothingFactor);
+    output.nextRow();
+
+    // Exponential Smoothing
+    output.push();
+
+    std::unique_ptr<DataRangeIterator> pIterator;
+    if (mGroupedBy == BY_COLUMN)
+        pIterator.reset(new DataRangeByColumnIterator(mInputRange));
+    else
+        pIterator.reset(new DataRangeByRowIterator(mInputRange));
+
+    for( ; pIterator->hasNext(); pIterator->next() )
+    {
+        output.resetRow();
+
+        ScRange aCurrentRange = pIterator->get();
+
+        // Write column label
+        if (mGroupedBy == BY_COLUMN)
+            aTemplate.setTemplate(ScResId(STR_COLUMN_LABEL_TEMPLATE));
+        else
+            aTemplate.setTemplate(ScResId(STR_ROW_LABEL_TEMPLATE));
+        aTemplate.applyNumber("%NUMBER%", pIterator->index() + 1);
+        output.writeBoldString(aTemplate.getTemplate());
+        output.nextRow();
+
+        // Initial value
+        if ((false))
+        {
+            aTemplate.setTemplate("=AVERAGE(%RANGE%)");
+            aTemplate.applyRange("%RANGE%", aCurrentRange);
+            output.writeFormula(aTemplate.getTemplate());
+        }
+        else
+        {
+            aTemplate.setTemplate("=%VAR%");
+            aTemplate.applyAddress("%VAR%", aCurrentRange.aStart);
+            output.writeFormula(aTemplate.getTemplate());
+        }
+
+        output.nextRow();
+
+        DataCellIterator aDataCellIterator = pIterator->iterateCells();
+
+        for (; aDataCellIterator.hasNext(); aDataCellIterator.next())
+        {
+            aTemplate.setTemplate("=%VALUE% * %PREVIOUS_INPUT% + (1 - %VALUE%) * %PREVIOUS_OUTPUT%");
+            aTemplate.applyAddress("%PREVIOUS_INPUT%",  aDataCellIterator.get());
+            aTemplate.applyAddress("%PREVIOUS_OUTPUT%", output.current(0, -1));
+            aTemplate.applyAddress("%VALUE%",           aSmoothingFactorAddress);
+
+            output.writeFormula(aTemplate.getTemplate());
+            output.nextRow();
+        }
+        output.nextColumn();
+    }
+
+    return ScRange (output.mMinimumAddress, output.mMaximumAddress);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/FTestDialog.cxx b/sc/source/ui/StatisticsDialogs/FTestDialog.cxx
new file mode 100644
index 000000000..1fc75ee7f
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/FTestDialog.cxx
@@ -0,0 +1,171 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <memory>
+
+#include <reffact.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <FTestDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+ScFTestDialog::ScFTestDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData ) :
+    ScStatisticsTwoVariableDialog(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/ttestdialog.ui", "TTestDialog" )
+{
+    m_xDialog->set_title(ScResId(STR_FTEST));
+}
+
+ScFTestDialog::~ScFTestDialog()
+{}
+
+void ScFTestDialog::Close()
+{
+    DoClose( ScFTestDialogWrapper::GetChildWindowId() );
+}
+
+const char* ScFTestDialog::GetUndoNameId()
+{
+    return STR_FTEST_UNDO_NAME;
+}
+
+ScRange ScFTestDialog::ApplyOutput(ScDocShell* pDocShell)
+{
+    AddressWalkerWriter aOutput(mOutputAddress, pDocShell, &mDocument,
+            formula::FormulaGrammar::mergeToGrammar(formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+
+    std::unique_ptr<DataRangeIterator> pVariable1Iterator;
+    if (mGroupedBy == BY_COLUMN)
+        pVariable1Iterator.reset(new DataRangeByColumnIterator(mVariable1Range));
+    else
+        pVariable1Iterator.reset(new DataRangeByRowIterator(mVariable1Range));
+
+    std::unique_ptr<DataRangeIterator> pVariable2Iterator;
+    if (mGroupedBy == BY_COLUMN)
+        pVariable2Iterator.reset(new DataRangeByColumnIterator(mVariable2Range));
+    else
+        pVariable2Iterator.reset(new DataRangeByRowIterator(mVariable2Range));
+
+    aTemplate.autoReplaceRange("%VARIABLE1_RANGE%", pVariable1Iterator->get());
+    aTemplate.autoReplaceRange("%VARIABLE2_RANGE%", pVariable2Iterator->get());
+
+    aOutput.writeBoldString(ScResId(STR_FTEST_UNDO_NAME));
+    aOutput.newLine();
+
+    // Alpha
+    aOutput.writeString(ScResId(STR_LABEL_ALPHA));
+    aOutput.nextColumn();
+    aOutput.writeValue(0.05);
+    aTemplate.autoReplaceAddress("%ALPHA%", aOutput.current());
+    aOutput.newLine();
+
+    aOutput.nextColumn();
+    aOutput.writeBoldString(ScResId(STR_VARIABLE_1_LABEL));
+    aOutput.nextColumn();
+    aOutput.writeBoldString(ScResId(STR_VARIABLE_2_LABEL));
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STRID_CALC_MEAN));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=AVERAGE(%VARIABLE1_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=AVERAGE(%VARIABLE2_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STRID_CALC_VARIANCE));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=VAR(%VARIABLE1_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%VARIABLE1_VARIANCE%", aOutput.current());
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=VAR(%VARIABLE2_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%VARIABLE2_VARIANCE%", aOutput.current());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STR_OBSERVATIONS_LABEL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=COUNT(%VARIABLE1_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%VARIABLE1_OBSERVATIONS%", aOutput.current());
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=COUNT(%VARIABLE2_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%VARIABLE2_OBSERVATIONS%", aOutput.current());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STR_ANOVA_LABEL_DF));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=%VARIABLE1_OBSERVATIONS% - 1");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%VARIABLE1_DEGREE_OF_FREEDOM%", aOutput.current());
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=%VARIABLE2_OBSERVATIONS% - 1");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%VARIABLE2_DEGREE_OF_FREEDOM%", aOutput.current());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STR_ANOVA_LABEL_F));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=%VARIABLE1_VARIANCE% / %VARIABLE2_VARIANCE%");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%F_VALUE%", aOutput.current());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STR_FTEST_P_RIGHT_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=FDIST(%F_VALUE%; %VARIABLE1_DEGREE_OF_FREEDOM%; %VARIABLE2_DEGREE_OF_FREEDOM%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%P_RIGHT_TAIL_VALUE%", aOutput.current());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STR_FTEST_F_CRITICAL_RIGHT_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=FINV(%ALPHA%; %VARIABLE1_DEGREE_OF_FREEDOM%; %VARIABLE2_DEGREE_OF_FREEDOM%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STR_FTEST_P_LEFT_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=1 - %P_RIGHT_TAIL_VALUE%");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%P_LEFT_TAIL_VALUE%", aOutput.current());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STR_FTEST_F_CRITICAL_LEFT_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=FINV(1-%ALPHA%; %VARIABLE1_DEGREE_OF_FREEDOM%; %VARIABLE2_DEGREE_OF_FREEDOM%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STR_FTEST_P_TWO_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=2*MIN(%P_RIGHT_TAIL_VALUE%; %P_LEFT_TAIL_VALUE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STR_FTEST_F_CRITICAL_TWO_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=FINV(1-(%ALPHA%/2); %VARIABLE1_DEGREE_OF_FREEDOM%; %VARIABLE2_DEGREE_OF_FREEDOM%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=FINV(%ALPHA%/2; %VARIABLE1_DEGREE_OF_FREEDOM%; %VARIABLE2_DEGREE_OF_FREEDOM%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+
+    return ScRange(aOutput.mMinimumAddress, aOutput.mMaximumAddress);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/FourierAnalysisDialog.cxx b/sc/source/ui/StatisticsDialogs/FourierAnalysisDialog.cxx
new file mode 100644
index 000000000..70116e059
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/FourierAnalysisDialog.cxx
@@ -0,0 +1,240 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <sfx2/dispatch.hxx>
+#include <svl/zforlist.hxx>
+#include <svl/undo.hxx>
+
+#include <formulacell.hxx>
+#include <rangelst.hxx>
+#include <scitems.hxx>
+#include <docsh.hxx>
+#include <document.hxx>
+#include <uiitems.hxx>
+#include <reffact.hxx>
+#include <docfunc.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <FourierAnalysisDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+ScFourierAnalysisDialog::ScFourierAnalysisDialog(SfxBindings* pSfxBindings,
+                                                 SfxChildWindow* pChildWindow,
+                                                 weld::Window* pParent, ScViewData* pViewData)
+    : ScStatisticsInputOutputDialog(pSfxBindings, pChildWindow, pParent, pViewData,
+                                    "modules/scalc/ui/fourieranalysisdialog.ui",
+                                    "FourierAnalysisDialog")
+    , maLabelAddr(ScAddress::INITIALIZE_INVALID)
+    , maActualInputRange(ScAddress::INITIALIZE_INVALID)
+    , mnLen(0)
+    , mfMinMag(0.0)
+    , mbUse3DAddresses(false)
+    , mbGroupedByColumn(true)
+    , mbWithLabels(false)
+    , mbInverse(false)
+    , mbPolar(false)
+    , mxWithLabelsCheckBox(m_xBuilder->weld_check_button("withlabels-check"))
+    , mxInverseCheckBox(m_xBuilder->weld_check_button("inverse-check"))
+    , mxPolarCheckBox(m_xBuilder->weld_check_button("polar-check"))
+    , mxMinMagnitudeField(m_xBuilder->weld_spin_button("minmagnitude-spin"))
+    , mxErrorMessage(m_xBuilder->weld_label("error-message"))
+{
+    m_xDialog->set_title(ScResId(STR_FOURIER_ANALYSIS));
+
+    mxWithLabelsCheckBox->connect_toggled(LINK(this, ScFourierAnalysisDialog, CheckBoxHdl));
+}
+
+ScFourierAnalysisDialog::~ScFourierAnalysisDialog() {}
+
+void ScFourierAnalysisDialog::Close()
+{
+    DoClose(ScFourierAnalysisDialogWrapper::GetChildWindowId());
+}
+
+const char* ScFourierAnalysisDialog::GetUndoNameId() { return STR_FOURIER_ANALYSIS; }
+
+ScRange ScFourierAnalysisDialog::ApplyOutput(ScDocShell* pDocShell)
+{
+    getOptions();
+    AddressWalkerWriter aOutput(mOutputAddress, pDocShell, &mDocument,
+                                formula::FormulaGrammar::mergeToGrammar(
+                                    formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+    aTemplate.autoReplaceUses3D(mbUse3DAddresses);
+
+    aOutput.writeBoldString(mbInverse ? ScResId(STR_INVERSE_FOURIER_TRANSFORM)
+                                      : ScResId(STR_FOURIER_TRANSFORM));
+    aOutput.newLine();
+    OUString aLabel;
+    getDataLabel(aLabel);
+    if (aLabel.startsWith("="))
+        aOutput.writeFormula(aLabel);
+    else
+        aOutput.writeString(aLabel);
+
+    aOutput.newLine();
+    // Components header
+    if (!mbPolar)
+    {
+        aOutput.writeString(ScResId(STR_REAL_PART));
+        aOutput.nextColumn();
+        aOutput.writeString(ScResId(STR_IMAGINARY_PART));
+    }
+    else
+    {
+        aOutput.writeString(ScResId(STR_MAGNITUDE_PART));
+        aOutput.nextColumn();
+        aOutput.writeString(ScResId(STR_PHASE_PART));
+    }
+
+    aOutput.newLine();
+    aTemplate.autoReplaceRange("%INPUTRANGE%", maActualInputRange);
+
+    OUString aFormula;
+    genFormula(aFormula);
+
+    aTemplate.setTemplate(aFormula);
+    aOutput.writeMatrixFormula(aTemplate.getTemplate(), 2, mnLen);
+
+    return ScRange(aOutput.mMinimumAddress, aOutput.mMaximumAddress);
+}
+
+bool ScFourierAnalysisDialog::InputRangesValid()
+{
+    if (!mInputRange.IsValid())
+    {
+        mxErrorMessage->set_label(ScResId(STR_MESSAGE_INVALID_INPUT_RANGE));
+        return false;
+    }
+
+    if (!mOutputAddress.IsValid())
+    {
+        mxErrorMessage->set_label(ScResId(STR_MESSAGE_INVALID_OUTPUT_ADDR));
+        return false;
+    }
+
+    mInputRange.PutInOrder();
+
+    mbGroupedByColumn = mGroupedBy == BY_COLUMN;
+    mbWithLabels = mxWithLabelsCheckBox->get_active();
+
+    mbUse3DAddresses = mInputRange.aStart.Tab() != mOutputAddress.Tab();
+
+    SCSIZE nRows = mInputRange.aEnd.Row() - mInputRange.aStart.Row() + 1;
+    SCSIZE nCols = mInputRange.aEnd.Col() - mInputRange.aStart.Col() + 1;
+
+    SCSIZE nLen = mbGroupedByColumn ? nRows : nCols;
+    SCSIZE nComponents = mbGroupedByColumn ? nCols : nRows;
+
+    if (nComponents > 2)
+    {
+        OUString aMsg = mbGroupedByColumn ? ScResId(STR_MESSAGE_INVALID_NUMCOLS)
+                                          : ScResId(STR_MESSAGE_INVALID_NUMROWS);
+        mxErrorMessage->set_label(aMsg);
+        return false;
+    }
+
+    if (mbWithLabels && nLen < 2)
+    {
+        mxErrorMessage->set_label(ScResId(STR_MESSAGE_NODATA_IN_RANGE));
+        return false;
+    }
+
+    // Include space for writing the title, label and Real/Imaginary/Magnitude/Phase heading.
+    SCSIZE nLastOutputRow = mOutputAddress.Row() + nLen + 2;
+    if (mbWithLabels)
+        --nLastOutputRow;
+
+    if (nLastOutputRow > MAXROW)
+    {
+        mxErrorMessage->set_label(ScResId(STR_MESSAGE_OUTPUT_TOO_LONG));
+        return false;
+    }
+
+    ScAddress aActualStart(mInputRange.aStart);
+
+    if (mbWithLabels)
+    {
+        if (mbGroupedByColumn)
+            aActualStart.IncRow();
+        else
+            aActualStart.IncCol();
+
+        if (nComponents == 1)
+            maLabelAddr = mInputRange.aStart;
+        else
+            mbWithLabels = false;
+
+        mnLen = nLen - 1;
+    }
+    else
+    {
+        mnLen = nLen;
+    }
+
+    maActualInputRange = ScRange(aActualStart, mInputRange.aEnd);
+    mxErrorMessage->set_label("");
+
+    return true;
+}
+
+void ScFourierAnalysisDialog::getOptions()
+{
+    mbInverse = mxInverseCheckBox->get_active();
+    mbPolar = mxPolarCheckBox->get_active();
+
+    sal_Int32 nDeciBels = static_cast<sal_Int32>(mxMinMagnitudeField->get_value());
+    if (nDeciBels <= -150)
+        mfMinMag = 0.0;
+    else
+        mfMinMag = pow(10.0, static_cast<double>(nDeciBels) / 10.0);
+}
+
+void ScFourierAnalysisDialog::getDataLabel(OUString& rLabel)
+{
+    if (mbWithLabels)
+    {
+        rLabel = "="
+                 + maLabelAddr.Format(mbUse3DAddresses ? ScRefFlags::ADDR_ABS_3D
+                                                       : ScRefFlags::ADDR_ABS,
+                                      &mDocument, mAddressDetails);
+
+        return;
+    }
+
+    OUString aDataSrc(mInputRange.Format(
+        mDocument, mbUse3DAddresses ? ScRefFlags::RANGE_ABS_3D : ScRefFlags::RANGE_ABS,
+        mAddressDetails));
+
+    rLabel = ScResId(STR_INPUT_DATA_RANGE) + " : " + aDataSrc;
+    return;
+}
+
+void ScFourierAnalysisDialog::genFormula(OUString& rFormula)
+{
+    static const OUString aSep(";");
+
+    if (!mbPolar)
+    {
+        rFormula = "FOURIER(%INPUTRANGE%;" + OUString::boolean(mbGroupedByColumn) + aSep
+                   + OUString::boolean(mbInverse) + ")";
+        return;
+    }
+
+    rFormula = "FOURIER(%INPUTRANGE%;" + OUString::boolean(mbGroupedByColumn) + aSep
+               + OUString::boolean(mbInverse) + ";true;" + OUString::number(mfMinMag) + ")";
+}
+
+IMPL_LINK_NOARG(ScFourierAnalysisDialog, CheckBoxHdl, weld::ToggleButton&, void)
+{
+    ValidateDialogInput();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/MatrixComparisonGenerator.cxx b/sc/source/ui/StatisticsDialogs/MatrixComparisonGenerator.cxx
new file mode 100644
index 000000000..bb8e43efe
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/MatrixComparisonGenerator.cxx
@@ -0,0 +1,113 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <rangelst.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <MatrixComparisonGenerator.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+namespace
+{
+    void lclWriteCorrelationFormulas(
+            AddressWalkerWriter& aOutput, FormulaTemplate& aTemplate,
+            const ScRangeList& aRangeList, const OUString& aTemplateString)
+    {
+        for (size_t i = 0; i < aRangeList.size(); i++)
+        {
+            aOutput.resetRow();
+            for (size_t j = 0; j < aRangeList.size(); j++)
+            {
+                if (j >= i)
+                {
+                    aTemplate.setTemplate(aTemplateString);
+                    aTemplate.applyRange("%VAR1%", aRangeList[i]);
+                    aTemplate.applyRange("%VAR2%", aRangeList[j]);
+                    aOutput.writeFormula(aTemplate.getTemplate());
+                }
+                aOutput.nextRow();
+            }
+            aOutput.nextColumn();
+        }
+    }
+}
+
+ScMatrixComparisonGenerator::ScMatrixComparisonGenerator(
+                                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                                    weld::Window* pParent, ScViewData* pViewData,
+                                    const OUString& rUiXmlDescription,
+                                    const OString& rID)
+    : ScStatisticsInputOutputDialog(pSfxBindings, pChildWindow, pParent, pViewData, rUiXmlDescription, rID)
+{}
+
+ScMatrixComparisonGenerator::~ScMatrixComparisonGenerator()
+{}
+
+const char* ScMatrixComparisonGenerator::GetUndoNameId()
+{
+    return STR_CORRELATION_UNDO_NAME;
+}
+
+ScRange ScMatrixComparisonGenerator::ApplyOutput(ScDocShell* pDocShell)
+{
+    AddressWalkerWriter output(mOutputAddress, pDocShell, &mDocument,
+            formula::FormulaGrammar::mergeToGrammar( formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+
+    SCTAB inTab = mInputRange.aStart.Tab();
+
+    ScRangeList aRangeList = (mGroupedBy == BY_COLUMN) ?
+        MakeColumnRangeList(inTab, mInputRange.aStart, mInputRange.aEnd) :
+        MakeRowRangeList(inTab, mInputRange.aStart, mInputRange.aEnd);
+
+    // labels
+    output.writeString(getLabel());
+    output.nextColumn();
+
+    const OUString strWildcardNumber("%NUMBER%");
+
+    // write labels to columns
+    for (size_t i = 0; i < aRangeList.size(); i++)
+    {
+        if (mGroupedBy == BY_COLUMN)
+            aTemplate.setTemplate(ScResId(STR_COLUMN_LABEL_TEMPLATE));
+        else
+            aTemplate.setTemplate(ScResId(STR_ROW_LABEL_TEMPLATE));
+
+        aTemplate.applyNumber(strWildcardNumber, i + 1);
+        output.writeString(aTemplate.getTemplate());
+        output.nextColumn();
+    }
+
+    // write labels to rows
+    output.resetColumn();
+    output.nextRow();
+    for (size_t i = 0; i < aRangeList.size(); i++)
+    {
+        if (mGroupedBy == BY_COLUMN)
+            aTemplate.setTemplate(ScResId(STR_COLUMN_LABEL_TEMPLATE));
+        else
+            aTemplate.setTemplate(ScResId(STR_ROW_LABEL_TEMPLATE));
+
+        aTemplate.applyNumber(strWildcardNumber, i + 1);
+        output.writeString(aTemplate.getTemplate());
+        output.nextRow();
+    }
+
+    // write correlation formulas
+    output.reset();
+    output.push(1, 1);
+
+    lclWriteCorrelationFormulas(output, aTemplate, aRangeList, getTemplate());
+
+    return ScRange(output.mMinimumAddress, output.mMaximumAddress);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/MovingAverageDialog.cxx b/sc/source/ui/StatisticsDialogs/MovingAverageDialog.cxx
new file mode 100644
index 000000000..07e104f39
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/MovingAverageDialog.cxx
@@ -0,0 +1,116 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <memory>
+
+#include <reffact.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <MovingAverageDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+ScMovingAverageDialog::ScMovingAverageDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData )
+    : ScStatisticsInputOutputDialog(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/movingaveragedialog.ui",
+            "MovingAverageDialog")
+    , mxTrimRangeCheck(m_xBuilder->weld_check_button("trimrange-check"))
+    , mxIntervalSpin(m_xBuilder->weld_spin_button("interval-spin"))
+{
+}
+
+ScMovingAverageDialog::~ScMovingAverageDialog()
+{
+}
+
+void ScMovingAverageDialog::Close()
+{
+    DoClose( ScMovingAverageDialogWrapper::GetChildWindowId() );
+}
+
+const char* ScMovingAverageDialog::GetUndoNameId()
+{
+    return STR_MOVING_AVERAGE_UNDO_NAME;
+}
+
+ScRange ScMovingAverageDialog::ApplyOutput(ScDocShell* pDocShell)
+{
+    AddressWalkerWriter output(mOutputAddress, pDocShell, &mDocument,
+            formula::FormulaGrammar::mergeToGrammar( formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+
+    if (mxTrimRangeCheck->get_active())
+        mDocument.GetDataAreaSubrange(mInputRange);
+
+    std::unique_ptr<DataRangeIterator> pIterator;
+    if (mGroupedBy == BY_COLUMN)
+        pIterator.reset(new DataRangeByColumnIterator(mInputRange));
+    else
+        pIterator.reset(new DataRangeByRowIterator(mInputRange));
+
+    sal_Int32 aIntervalSize = mxIntervalSpin->get_value();
+    const bool aCentral = true; //to-do add support to change this to the dialog
+
+    for( ; pIterator->hasNext(); pIterator->next() )
+    {
+        output.resetRow();
+
+        // Write label
+        if (mGroupedBy == BY_COLUMN)
+            aTemplate.setTemplate(ScResId(STR_COLUMN_LABEL_TEMPLATE));
+        else
+            aTemplate.setTemplate(ScResId(STR_ROW_LABEL_TEMPLATE));
+
+        aTemplate.applyNumber("%NUMBER%", pIterator->index() + 1);
+        output.writeBoldString(aTemplate.getTemplate());
+        output.nextRow();
+
+        DataCellIterator aDataCellIterator = pIterator->iterateCells();
+        std::vector<OUString> aFormulas;
+
+        for (; aDataCellIterator.hasNext(); aDataCellIterator.next())
+        {
+            ScAddress aIntervalStart;
+            ScAddress aIntervalEnd;
+
+            if (aCentral)
+            {
+                sal_Int32 aHalf = aIntervalSize / 2;
+                sal_Int32 aHalfRemainder = aIntervalSize % 2;
+                aIntervalStart = aDataCellIterator.getRelative(-aHalf);
+                aIntervalEnd = aDataCellIterator.getRelative(aHalf - 1 + aHalfRemainder);
+            }
+            else
+            {
+                aIntervalStart = aDataCellIterator.getRelative(-aIntervalSize);
+                aIntervalEnd = aDataCellIterator.getRelative(0);
+            }
+
+            if(aIntervalStart.IsValid() && aIntervalEnd.IsValid())
+            {
+                aTemplate.setTemplate("=AVERAGE(%RANGE%)");
+                aTemplate.applyRange("%RANGE%", ScRange(aIntervalStart, aIntervalEnd));
+                aFormulas.push_back(aTemplate.getTemplate());
+            }
+            else
+            {
+                aFormulas.push_back("=#N/A");
+            }
+        }
+
+        output.writeFormulas(aFormulas);
+        output.nextColumn();
+    }
+    return ScRange(output.mMinimumAddress, output.mMaximumAddress);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/RandomNumberGeneratorDialog.cxx b/sc/source/ui/StatisticsDialogs/RandomNumberGeneratorDialog.cxx
new file mode 100644
index 000000000..9127f879d
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/RandomNumberGeneratorDialog.cxx
@@ -0,0 +1,482 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <svl/undo.hxx>
+#include <rtl/math.hxx>
+#include <osl/time.h>
+
+#include <rangelst.hxx>
+#include <docsh.hxx>
+#include <document.hxx>
+#include <reffact.hxx>
+#include <docfunc.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+#include <random>
+
+#include <RandomNumberGeneratorDialog.hxx>
+
+namespace
+{
+
+const sal_Int64 DIST_UNIFORM             = 0;
+const sal_Int64 DIST_NORMAL              = 1;
+const sal_Int64 DIST_CAUCHY              = 2;
+const sal_Int64 DIST_BERNOULLI           = 3;
+const sal_Int64 DIST_BINOMIAL            = 4;
+const sal_Int64 DIST_CHI_SQUARED         = 5;
+const sal_Int64 DIST_GEOMETRIC           = 6;
+const sal_Int64 DIST_NEGATIVE_BINOMIAL   = 7;
+const sal_Int64 DIST_UNIFORM_INTEGER     = 8;
+
+const sal_Int64 PRECISION   = 10000;
+const sal_Int64 DIGITS      = 4;
+
+}
+
+ScRandomNumberGeneratorDialog::ScRandomNumberGeneratorDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData)
+    : ScAnyRefDlgController(pSfxBindings, pChildWindow, pParent,
+                          "modules/scalc/ui/randomnumbergenerator.ui",
+                          "RandomNumberGeneratorDialog")
+    , mpViewData(pViewData)
+    , mrDoc(*pViewData->GetDocument())
+    , mbDialogLostFocus(false)
+    , mxInputRangeText(m_xBuilder->weld_label("cell-range-label"))
+    , mxInputRangeEdit(new formula::RefEdit(m_xBuilder->weld_entry("cell-range-edit")))
+    , mxInputRangeButton(new formula::RefButton(m_xBuilder->weld_button("cell-range-button")))
+    , mxDistributionCombo(m_xBuilder->weld_combo_box("distribution-combo"))
+    , mxParameter1Text(m_xBuilder->weld_label("parameter1-label"))
+    , mxParameter1Value(m_xBuilder->weld_spin_button("parameter1-spin"))
+    , mxParameter2Text(m_xBuilder->weld_label("parameter2-label"))
+    , mxParameter2Value(m_xBuilder->weld_spin_button("parameter2-spin"))
+    , mxSeed(m_xBuilder->weld_spin_button("seed-spin"))
+    , mxEnableSeed(m_xBuilder->weld_check_button("enable-seed-check"))
+    , mxDecimalPlaces(m_xBuilder->weld_spin_button("decimal-places-spin"))
+    , mxEnableRounding(m_xBuilder->weld_check_button("enable-rounding-check"))
+    , mxButtonApply(m_xBuilder->weld_button("apply"))
+    , mxButtonOk(m_xBuilder->weld_button("ok"))
+    , mxButtonClose(m_xBuilder->weld_button("close"))
+{
+    mxInputRangeEdit->SetReferences(this, mxInputRangeText.get());
+    mxInputRangeButton->SetReferences(this, mxInputRangeEdit.get());
+
+    Init();
+    GetRangeFromSelection();
+}
+
+ScRandomNumberGeneratorDialog::~ScRandomNumberGeneratorDialog()
+{
+}
+
+void ScRandomNumberGeneratorDialog::Init()
+{
+    mxButtonOk->connect_clicked( LINK( this, ScRandomNumberGeneratorDialog, OkClicked ) );
+    mxButtonClose->connect_clicked( LINK( this, ScRandomNumberGeneratorDialog, CloseClicked ) );
+    mxButtonApply->connect_clicked( LINK( this, ScRandomNumberGeneratorDialog, ApplyClicked ) );
+
+    mxInputRangeEdit->SetGetFocusHdl(LINK( this, ScRandomNumberGeneratorDialog, GetEditFocusHandler ));
+    mxInputRangeButton->SetGetFocusHdl(LINK( this, ScRandomNumberGeneratorDialog, GetButtonFocusHandler ));
+
+    mxInputRangeEdit->SetLoseFocusHdl (LINK( this, ScRandomNumberGeneratorDialog, LoseEditFocusHandler ));
+    mxInputRangeButton->SetLoseFocusHdl (LINK( this, ScRandomNumberGeneratorDialog, LoseButtonFocusHandler ));
+
+    mxInputRangeEdit->SetModifyHdl( LINK( this, ScRandomNumberGeneratorDialog, InputRangeModified ));
+    mxParameter1Value->connect_value_changed( LINK( this, ScRandomNumberGeneratorDialog, Parameter1ValueModified ));
+    mxParameter2Value->connect_value_changed( LINK( this, ScRandomNumberGeneratorDialog, Parameter2ValueModified ));
+
+    mxDistributionCombo->connect_changed( LINK( this, ScRandomNumberGeneratorDialog, DistributionChanged ));
+
+    mxEnableSeed->connect_toggled( LINK( this, ScRandomNumberGeneratorDialog, CheckChanged ));
+    mxEnableRounding->connect_toggled( LINK( this, ScRandomNumberGeneratorDialog, CheckChanged ));
+
+    DistributionChanged(*mxDistributionCombo);
+    CheckChanged(*mxEnableSeed);
+}
+
+void ScRandomNumberGeneratorDialog::GetRangeFromSelection()
+{
+    mpViewData->GetSimpleArea(maInputRange);
+    OUString aCurrentString(maInputRange.Format(mrDoc, ScRefFlags::RANGE_ABS_3D, mrDoc.GetAddressConvention()));
+    mxInputRangeEdit->SetText( aCurrentString );
+}
+
+void ScRandomNumberGeneratorDialog::SetActive()
+{
+    if ( mbDialogLostFocus )
+    {
+        mbDialogLostFocus = false;
+        if( mxInputRangeEdit )
+            mxInputRangeEdit->GrabFocus();
+    }
+    else
+    {
+        m_xDialog->grab_focus();
+    }
+    RefInputDone();
+}
+
+void ScRandomNumberGeneratorDialog::Close()
+{
+    DoClose( ScRandomNumberGeneratorDialogWrapper::GetChildWindowId() );
+}
+
+void ScRandomNumberGeneratorDialog::SetReference( const ScRange& rReferenceRange, ScDocument& rDoc )
+{
+    if (mxInputRangeEdit->GetWidget()->get_sensitive())
+    {
+        if ( rReferenceRange.aStart != rReferenceRange.aEnd )
+            RefInputStart(mxInputRangeEdit.get());
+
+        maInputRange = rReferenceRange;
+
+        OUString aReferenceString(maInputRange.Format(rDoc, ScRefFlags::RANGE_ABS_3D, rDoc.GetAddressConvention()));
+        mxInputRangeEdit->SetRefString( aReferenceString );
+
+        mxButtonApply->set_sensitive(true);
+        mxButtonOk->set_sensitive(true);
+    }
+}
+
+void ScRandomNumberGeneratorDialog::SelectGeneratorAndGenerateNumbers()
+{
+    if (!maInputRange.IsValid())
+        return;
+
+    sal_Int64 aSelectedId = mxDistributionCombo->get_active_id().toInt64();
+
+    sal_uInt32 seedValue;
+
+    if( mxEnableSeed->get_active() )
+    {
+        seedValue = mxSeed->get_value();
+    }
+    else
+    {
+        TimeValue now;
+        osl_getSystemTime(&now);
+        seedValue = now.Nanosec;
+    }
+
+    std::mt19937 seed(seedValue);
+
+    sal_Int64 parameterInteger1 = mxParameter1Value->get_value();
+    sal_Int64 parameterInteger2 = mxParameter2Value->get_value();
+
+    double parameter1 = parameterInteger1 / static_cast<double>(PRECISION);
+    double parameter2 = parameterInteger2 / static_cast<double>(PRECISION);
+
+    std::optional<sal_Int8> aDecimalPlaces;
+    if (mxEnableRounding->get_active())
+    {
+        aDecimalPlaces = static_cast<sal_Int8>(mxDecimalPlaces->get_value());
+    }
+
+    switch(aSelectedId)
+    {
+        case DIST_UNIFORM:
+        {
+            std::uniform_real_distribution<> distribution(parameter1, parameter2);
+            auto rng = std::bind(distribution, seed);
+            GenerateNumbers(rng, STR_DISTRIBUTION_UNIFORM_REAL, aDecimalPlaces);
+            break;
+        }
+        case DIST_UNIFORM_INTEGER:
+        {
+            std::uniform_int_distribution<sal_Int64> distribution(parameterInteger1, parameterInteger2);
+            auto rng = std::bind(distribution, seed);
+            GenerateNumbers(rng, STR_DISTRIBUTION_UNIFORM_INTEGER, aDecimalPlaces);
+            break;
+        }
+        case DIST_NORMAL:
+        {
+            std::normal_distribution<> distribution(parameter1, parameter2);
+            auto rng = std::bind(distribution, seed);
+            GenerateNumbers(rng, STR_DISTRIBUTION_NORMAL, aDecimalPlaces);
+            break;
+        }
+        case DIST_CAUCHY:
+        {
+            std::cauchy_distribution<> distribution(parameter1);
+            auto rng = std::bind(distribution, seed);
+            GenerateNumbers(rng, STR_DISTRIBUTION_CAUCHY, aDecimalPlaces);
+            break;
+        }
+        case DIST_BERNOULLI:
+        {
+            std::bernoulli_distribution distribution(parameter1);
+            auto rng = std::bind(distribution, seed);
+            GenerateNumbers(rng, STR_DISTRIBUTION_BERNOULLI, aDecimalPlaces);
+            break;
+        }
+        case DIST_BINOMIAL:
+        {
+            std::binomial_distribution<> distribution(parameterInteger2, parameter1);
+            auto rng = std::bind(distribution, seed);
+            GenerateNumbers(rng, STR_DISTRIBUTION_BINOMIAL, aDecimalPlaces);
+            break;
+        }
+        case DIST_NEGATIVE_BINOMIAL:
+        {
+            std::negative_binomial_distribution<> distribution(parameterInteger2, parameter1);
+            auto rng = std::bind(distribution, seed);
+            GenerateNumbers(rng, STR_DISTRIBUTION_NEGATIVE_BINOMIAL, aDecimalPlaces);
+            break;
+        }
+        case DIST_CHI_SQUARED:
+        {
+            std::chi_squared_distribution<> distribution(parameter1);
+            auto rng = std::bind(distribution, seed);
+            GenerateNumbers(rng, STR_DISTRIBUTION_CHI_SQUARED, aDecimalPlaces);
+            break;
+        }
+        case DIST_GEOMETRIC:
+        {
+            std::geometric_distribution<> distribution(parameter1);
+            auto rng = std::bind(distribution, seed);
+            GenerateNumbers(rng, STR_DISTRIBUTION_GEOMETRIC, aDecimalPlaces);
+            break;
+        }
+    }
+}
+
+template<class RNG>
+void ScRandomNumberGeneratorDialog::GenerateNumbers(RNG& randomGenerator, const char* pDistributionStringId, std::optional<sal_Int8> aDecimalPlaces)
+{
+    OUString aUndo = ScResId(STR_UNDO_DISTRIBUTION_TEMPLATE);
+    OUString aDistributionName = ScResId(pDistributionStringId);
+    aUndo = aUndo.replaceAll("$(DISTRIBUTION)",  aDistributionName);
+
+    ScDocShell* pDocShell = mpViewData->GetDocShell();
+    SfxUndoManager* pUndoManager = pDocShell->GetUndoManager();
+    pUndoManager->EnterListAction( aUndo, aUndo, 0, mpViewData->GetViewShell()->GetViewShellId() );
+
+    SCROW nRowStart = maInputRange.aStart.Row();
+    SCROW nRowEnd   = maInputRange.aEnd.Row();
+    SCCOL nColStart = maInputRange.aStart.Col();
+    SCCOL nColEnd   = maInputRange.aEnd.Col();
+    SCTAB nTabStart = maInputRange.aStart.Tab();
+    SCTAB nTabEnd   = maInputRange.aEnd.Tab();
+
+    std::vector<double> aVals;
+    aVals.reserve(nRowEnd - nRowStart + 1);
+
+    for (SCROW nTab = nTabStart; nTab <= nTabEnd; ++nTab)
+    {
+        for (SCCOL nCol = nColStart; nCol <= nColEnd; ++nCol)
+        {
+            aVals.clear();
+
+            ScAddress aPos(nCol, nRowStart, nTab);
+            for (SCROW nRow = nRowStart; nRow <= nRowEnd; ++nRow)
+            {
+
+                if (aDecimalPlaces)
+                    aVals.push_back(rtl::math::round(randomGenerator(), *aDecimalPlaces));
+                else
+                    aVals.push_back(randomGenerator());
+            }
+
+            pDocShell->GetDocFunc().SetValueCells(aPos, aVals, true);
+        }
+    }
+
+    pUndoManager->LeaveListAction();
+
+    pDocShell->PostPaint( maInputRange, PaintPartFlags::Grid );
+}
+
+IMPL_LINK_NOARG( ScRandomNumberGeneratorDialog, OkClicked, weld::Button&, void )
+{
+    ApplyClicked(*mxButtonApply);
+    CloseClicked(*mxButtonClose);
+}
+
+IMPL_LINK_NOARG( ScRandomNumberGeneratorDialog, ApplyClicked, weld::Button&, void )
+{
+    SelectGeneratorAndGenerateNumbers();
+}
+
+IMPL_LINK_NOARG( ScRandomNumberGeneratorDialog, CloseClicked, weld::Button&, void )
+{
+    response(RET_CLOSE);
+}
+
+IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, GetEditFocusHandler, formula::RefEdit&, void)
+{
+    mxInputRangeEdit->SelectAll();
+}
+
+IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, GetButtonFocusHandler, formula::RefButton&, void)
+{
+    mxInputRangeEdit->SelectAll();
+}
+
+IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, LoseEditFocusHandler, formula::RefEdit&, void)
+{
+    mbDialogLostFocus = !m_xDialog->has_toplevel_focus();
+}
+
+IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, LoseButtonFocusHandler, formula::RefButton&, void)
+{
+    mbDialogLostFocus = !m_xDialog->has_toplevel_focus();
+}
+
+IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, InputRangeModified, formula::RefEdit&, void)
+{
+    ScRangeList aRangeList;
+    bool bValid = ParseWithNames( aRangeList, mxInputRangeEdit->GetText(), mrDoc);
+    const ScRange* pRange = (bValid && aRangeList.size() == 1) ? &aRangeList[0] : nullptr;
+    if (pRange)
+    {
+        maInputRange = *pRange;
+        mxButtonApply->set_sensitive(true);
+        mxButtonOk->set_sensitive(true);
+        // Highlight the resulting range.
+        mxInputRangeEdit->StartUpdateData();
+    }
+    else
+    {
+        maInputRange = ScRange( ScAddress::INITIALIZE_INVALID);
+        mxButtonApply->set_sensitive(false);
+        mxButtonOk->set_sensitive(false);
+    }
+}
+
+IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, Parameter1ValueModified, weld::SpinButton&, void)
+{
+    sal_Int64 aSelectedId = mxDistributionCombo->get_active_id().toInt64();
+    if (aSelectedId == DIST_UNIFORM ||
+        aSelectedId == DIST_UNIFORM_INTEGER)
+    {
+        sal_Int64 min = mxParameter1Value->get_value();
+        sal_Int64 max = mxParameter2Value->get_value();
+        if(min > max)
+        {
+            mxParameter2Value->set_value(min);
+        }
+    }
+}
+
+IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, Parameter2ValueModified, weld::SpinButton&, void)
+{
+    sal_Int64 aSelectedId = mxDistributionCombo->get_active_id().toInt64();
+    if (aSelectedId == DIST_UNIFORM ||
+        aSelectedId == DIST_UNIFORM_INTEGER)
+    {
+        sal_Int64 min = mxParameter1Value->get_value();
+        sal_Int64 max = mxParameter2Value->get_value();
+        if(min > max)
+        {
+            mxParameter1Value->set_value(max);
+        }
+    }
+}
+
+IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, CheckChanged, weld::ToggleButton&, void)
+{
+    mxSeed->set_sensitive(mxEnableSeed->get_active());
+    mxDecimalPlaces->set_sensitive(mxEnableRounding->get_active());
+}
+
+IMPL_LINK_NOARG(ScRandomNumberGeneratorDialog, DistributionChanged, weld::ComboBox&, void)
+{
+    sal_Int64 aSelectedId = mxDistributionCombo->get_active_id().toInt64();
+
+    mxParameter1Value->set_range(SAL_MIN_INT32, SAL_MAX_INT32);
+    mxParameter2Value->set_range(SAL_MIN_INT32, SAL_MAX_INT32);
+
+    mxParameter1Value->set_digits(DIGITS);
+    mxParameter1Value->set_increments(PRECISION, PRECISION * 10);
+
+    mxParameter2Value->set_digits(DIGITS);
+    mxParameter2Value->set_increments(PRECISION, PRECISION * 10);
+
+    switch(aSelectedId)
+    {
+        case DIST_UNIFORM:
+        {
+            mxParameter1Text->set_label(ScResId(STR_RNG_PARAMETER_MINIMUM));
+            mxParameter2Text->set_label(ScResId(STR_RNG_PARAMETER_MAXIMUM));
+            mxParameter2Text->show();
+            mxParameter2Value->show();
+            break;
+        }
+        case DIST_UNIFORM_INTEGER:
+        {
+            mxParameter1Text->set_label(ScResId(STR_RNG_PARAMETER_MINIMUM));
+            mxParameter1Value->set_digits(0);
+            mxParameter1Value->set_increments(1, 10);
+
+            mxParameter2Text->set_label(ScResId(STR_RNG_PARAMETER_MAXIMUM));
+            mxParameter2Value->set_digits(0);
+            mxParameter2Value->set_increments(1, 10);
+
+            mxParameter2Text->show();
+            mxParameter2Value->show();
+            break;
+        }
+        case DIST_NORMAL:
+        {
+            mxParameter1Text->set_label(ScResId(STR_RNG_PARAMETER_MEAN));
+            mxParameter2Text->set_label(ScResId(STR_RNG_PARAMETER_STANDARD_DEVIATION));
+            mxParameter2Text->show();
+            mxParameter2Value->show();
+            break;
+        }
+        case DIST_CAUCHY:
+        {
+            mxParameter1Text->set_label(ScResId(STR_RNG_PARAMETER_STANDARD_MEDIAN));
+            mxParameter2Text->set_label(ScResId(STR_RNG_PARAMETER_STANDARD_SIGMA));
+            mxParameter2Text->show();
+            mxParameter2Value->show();
+            break;
+        }
+        case DIST_BERNOULLI:
+        case DIST_GEOMETRIC:
+        {
+            mxParameter1Text->set_label(ScResId(STR_RNG_PARAMETER_STANDARD_PROBABILITY));
+            mxParameter1Value->set_range(0, PRECISION);
+            mxParameter1Value->set_increments(1000, 10000);
+
+            mxParameter2Text->hide();
+            mxParameter2Value->hide();
+            break;
+        }
+        case DIST_BINOMIAL:
+        case DIST_NEGATIVE_BINOMIAL:
+        {
+            mxParameter1Text->set_label(ScResId(STR_RNG_PARAMETER_STANDARD_PROBABILITY));
+            mxParameter1Value->set_range(0, PRECISION);
+            mxParameter1Value->set_increments(1000, 10000);
+
+            mxParameter2Text->set_label(ScResId(STR_RNG_PARAMETER_STANDARD_NUMBER_OF_TRIALS));
+            mxParameter2Value->set_digits(0);
+            mxParameter2Value->set_increments(1, 10);
+            mxParameter2Value->set_min(0);
+
+            mxParameter2Text->show();
+            mxParameter2Value->show();
+            break;
+        }
+        case DIST_CHI_SQUARED:
+        {
+            mxParameter1Text->set_label(ScResId(STR_RNG_PARAMETER_STANDARD_NU_VALUE));
+
+            mxParameter2Text->hide();
+            mxParameter2Value->hide();
+            break;
+        }
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/RegressionDialog.cxx b/sc/source/ui/StatisticsDialogs/RegressionDialog.cxx
new file mode 100644
index 000000000..b5efacb85
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/RegressionDialog.cxx
@@ -0,0 +1,686 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <document.hxx>
+#include <reffact.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <RegressionDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+/*
+   Some regression basics
+   ----------------------
+
+   1. Linear regression fits using data, a linear function between the dependent variable and the independent variable(s).
+      The basic form of this function is :-
+
+      y = b + m_1*x_1 + m_2*x_2 + ... + m_k*x_k
+
+      where y is the dependent variable
+            x_1, x_2, ..., x_k are the k independent variables
+            b is the intercept
+            m_1, m_2, ..., m_k are the slopes corresponding to the variables x_1, x_2, ..., x_k respectively.
+
+
+     This equation for n observations can be compactly written using matrices as :-
+
+     y = X*A
+
+     where y is the n dimensional column vector containing dependent variable observations.
+     where X is matrix of shape n*(k+1) where a row looks like [ 1  x_1  x_2 ...  x_k ]
+           A is the k+1 dimensional column vector              [ b  m_1  m_2 ...  m_k ]
+
+     Calc formula LINEST(Y_array ; X_array) can be used to compute all entries in "A" along with many other statistics.
+
+
+  2. Logarithmic regression is basically used to find a linear function between the dependent variable and
+     the natural logarithm of the independent variable(s).
+     So the basic form of this functions is :-
+
+     y = b + m_1*ln(x_1) + m_2*ln(x_2) + ... + m_k*ln(x_k)
+
+     This can be again written in a compact matrix form for n observations.
+
+     y = ln(X)*A
+
+     where y is the n dimensional column vector containing dependent variable observations.
+     where X is matrix of shape n*(k+1) where a row looks like  [ e  x_1  x_2 ...  x_k ]
+           A is the k+1 dimensional column vector               [ b  m_1  m_2 ...  m_k ]
+
+     To estimate A, we use the formula =LINEST(Y_array ; LN(X_array))
+
+
+  3. Power regression is used to fit the following model :-
+
+     y = b * (x_1 ^ m_1) * (x_2 ^ m_2) * ... * (x_k ^ m_k)
+
+     To reduce this to a linear function(so that we can still use LINEST()), we take natural logarithm on both sides
+
+     ln(y) = c + m_1*ln(x_1) + m_2*ln(x_2) + ... + m_k*ln(x_k) ; where c = ln(b)
+
+
+     This again can be written compactly in matrix form as :-
+
+     ln(y) = ln(X)*A
+
+     where y is the n dimensional column vector containing dependent variable observations.
+     where X is matrix of shape n*(k+1) where a row looks like  [ e  x_1  x_2 ...  x_k ]
+           A is the k+1 dimensional column vector               [ c  m_1  m_2 ...  m_k ]
+
+     To estimate A, we use the formula =LINEST(LN(Y_array) ; LN(X_array))
+
+     Once we get A, to get back y from x's we use the formula :-
+
+     y = exp( ln(X)*A )
+
+
+
+     Some references for computing confidence interval for the regression coefficients :-
+
+     [1] https://en.wikipedia.org/wiki/Student%27s_t-test#Slope_of_a_regression_line
+     [2] https://en.wikipedia.org/wiki/Simple_linear_regression#Normality_assumption
+     [3] https://onlinecourses.science.psu.edu/stat414/node/280
+
+ */
+
+namespace
+{
+    enum class ScRegType {
+        LINEAR,
+        LOGARITHMIC,
+        POWER
+    };
+
+    const char* constRegressionModel[] =
+    {
+        STR_LABEL_LINEAR,
+        STR_LABEL_LOGARITHMIC,
+        STR_LABEL_POWER
+    };
+
+    OUString constTemplateLINEST[] =
+    {
+        "=LINEST(%VARIABLE2_RANGE% ; %VARIABLE1_RANGE% ; %CALC_INTERCEPT% ; TRUE)",
+        "=LINEST(%VARIABLE2_RANGE% ; LN(%VARIABLE1_RANGE%) ; %CALC_INTERCEPT% ; TRUE)",
+        "=LINEST(LN(%VARIABLE2_RANGE%) ; LN(%VARIABLE1_RANGE%) ; %CALC_INTERCEPT% ; TRUE)"
+    };
+
+    OUString constRegressionFormula[] =
+    {
+        "=MMULT(%XDATAMATRIX_RANGE% ; %SLOPES_RANGE%) + %INTERCEPT_ADDR%",
+        "=MMULT(LN(%XDATAMATRIX_RANGE%) ; %SLOPES_RANGE%) + %INTERCEPT_ADDR%",
+        "=EXP(MMULT(LN(%XDATAMATRIX_RANGE%) ; %SLOPES_RANGE%) + %INTERCEPT_ADDR%)"
+    };
+
+} // end anonymous namespace
+
+static size_t lcl_GetNumRowsColsInRange(const ScRange& rRange, bool bRows)
+{
+    if (bRows)
+        return rRange.aEnd.Row() - rRange.aStart.Row() + 1;
+
+    return rRange.aEnd.Col() - rRange.aStart.Col() + 1;
+}
+
+ScRegressionDialog::ScRegressionDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData )
+    : ScStatisticsTwoVariableDialog(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/regressiondialog.ui", "RegressionDialog")
+    , mbUnivariate(true)
+    , mnNumIndependentVars(1)
+    , mnNumObservations(0)
+    , mbUse3DAddresses(false)
+    , mbCalcIntercept(true)
+    , mxWithLabelsCheckBox(m_xBuilder->weld_check_button("withlabels-check"))
+    , mxLinearRadioButton(m_xBuilder->weld_radio_button("linear-radio"))
+    , mxLogarithmicRadioButton(m_xBuilder->weld_radio_button("logarithmic-radio"))
+    , mxPowerRadioButton(m_xBuilder->weld_radio_button("power-radio"))
+    , mxErrorMessage(m_xBuilder->weld_label("error-message"))
+    , mxConfidenceLevelField(m_xBuilder->weld_spin_button("confidencelevel-spin"))
+    , mxCalcResidualsCheckBox(m_xBuilder->weld_check_button("calcresiduals-check"))
+    , mxNoInterceptCheckBox(m_xBuilder->weld_check_button("nointercept-check"))
+{
+    mxWithLabelsCheckBox->connect_toggled(LINK(this, ScRegressionDialog, CheckBoxHdl));
+    mxConfidenceLevelField->connect_value_changed(LINK(this, ScRegressionDialog, NumericFieldHdl));
+}
+
+ScRegressionDialog::~ScRegressionDialog()
+{
+}
+
+void ScRegressionDialog::Close()
+{
+    DoClose(ScRegressionDialogWrapper::GetChildWindowId());
+}
+
+const char* ScRegressionDialog::GetUndoNameId()
+{
+    return STR_REGRESSION_UNDO_NAME;
+}
+
+ScRange ScRegressionDialog::ApplyOutput(ScDocShell* pDocShell)
+{
+    AddressWalkerWriter aOutput(mOutputAddress, pDocShell, &mDocument,
+            formula::FormulaGrammar::mergeToGrammar( formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+    aTemplate.autoReplaceUses3D(mbUse3DAddresses);
+    mbCalcIntercept = !mxNoInterceptCheckBox->get_active();
+
+    // max col of our output should account for
+    // 1. constant term column,
+    // 2. mnNumIndependentVars columns
+    // 3. Actual Y column
+    // 4. Predicted Y column
+    // 5. Residual Column
+    SCCOL nOutputMaxCol = mOutputAddress.Col() + mnNumIndependentVars + 3;
+
+    ScRange aXDataRange(GetDataRange(mVariable1Range));
+    ScRange aYDataRange(GetDataRange(mVariable2Range));
+
+    aTemplate.autoReplaceRange("%VARIABLE1_RANGE%", aXDataRange);
+    aTemplate.autoReplaceRange("%VARIABLE2_RANGE%", aYDataRange);
+    size_t nRegressionIndex = GetRegressionTypeIndex();
+    ScRegType eRegType = static_cast<ScRegType>(nRegressionIndex);
+    bool bTakeLogX = eRegType == ScRegType::LOGARITHMIC || eRegType == ScRegType::POWER;
+
+    WriteRawRegressionResults(aOutput, aTemplate, nRegressionIndex);
+    WriteRegressionStatistics(aOutput, aTemplate);
+    WriteRegressionANOVAResults(aOutput, aTemplate);
+    WriteRegressionEstimatesWithCI(aOutput, aTemplate, bTakeLogX);
+    if (mxCalcResidualsCheckBox->get_active())
+        WritePredictionsWithResiduals(aOutput, aTemplate, nRegressionIndex);
+
+    ScAddress aMaxAddress(aOutput.mMaximumAddress);
+    aMaxAddress.SetCol(std::max(aMaxAddress.Col(), nOutputMaxCol));
+    return ScRange(aOutput.mMinimumAddress, aMaxAddress);
+}
+
+bool ScRegressionDialog::InputRangesValid()
+{
+    if (!mVariable1Range.IsValid())
+    {
+        mxErrorMessage->set_label(ScResId(STR_MESSAGE_XINVALID_RANGE));
+        return false;
+    }
+
+    if (!mVariable2Range.IsValid())
+    {
+        mxErrorMessage->set_label(ScResId(STR_MESSAGE_YINVALID_RANGE));
+        return false;
+    }
+
+    if (!mOutputAddress.IsValid())
+    {
+        mxErrorMessage->set_label(ScResId(STR_MESSAGE_INVALID_OUTPUT_ADDR));
+        return false;
+    }
+
+    {
+        double fConfidenceLevel = mxConfidenceLevelField->get_value();
+        if ( fConfidenceLevel <= 0.0 || fConfidenceLevel >= 100.0 )
+        {
+            mxErrorMessage->set_label(ScResId(STR_MESSAGE_INVALID_CONFIDENCE_LEVEL));
+            return false;
+        }
+    }
+
+    mVariable1Range.PutInOrder();
+    mVariable2Range.PutInOrder();
+
+    bool bGroupedByColumn = mGroupedBy == BY_COLUMN;
+
+    bool bYHasSingleDim = (
+        (bGroupedByColumn &&
+         mVariable2Range.aStart.Col() == mVariable2Range.aEnd.Col()) ||
+        (!bGroupedByColumn &&
+         mVariable2Range.aStart.Row() == mVariable2Range.aEnd.Row()));
+
+    if (!bYHasSingleDim)
+    {
+        if (bGroupedByColumn)
+            mxErrorMessage->set_label(ScResId(STR_MESSAGE_YVARIABLE_MULTI_COLUMN));
+        else
+            mxErrorMessage->set_label(ScResId(STR_MESSAGE_YVARIABLE_MULTI_ROW));
+        return false;
+    }
+
+    bool bWithLabels = mxWithLabelsCheckBox->get_active();
+
+    size_t nYObs = lcl_GetNumRowsColsInRange(mVariable2Range, bGroupedByColumn);
+    size_t nNumXVars = lcl_GetNumRowsColsInRange(mVariable1Range, !bGroupedByColumn);
+    mbUnivariate = nNumXVars == 1;
+    // Observation count mismatch check
+    if (lcl_GetNumRowsColsInRange(mVariable1Range, bGroupedByColumn) != nYObs)
+    {
+        if (mbUnivariate)
+            mxErrorMessage->set_label(ScResId(STR_MESSAGE_UNIVARIATE_NUMOBS_MISMATCH));
+        else
+            mxErrorMessage->set_label(ScResId(STR_MESSAGE_MULTIVARIATE_NUMOBS_MISMATCH));
+        return false;
+    }
+
+    mnNumIndependentVars = nNumXVars;
+    mnNumObservations = bWithLabels ? nYObs - 1 : nYObs;
+
+    mbUse3DAddresses = mVariable1Range.aStart.Tab() != mOutputAddress.Tab() ||
+        mVariable2Range.aStart.Tab() != mOutputAddress.Tab();
+
+    mxErrorMessage->set_label("");
+
+    return true;
+}
+
+size_t ScRegressionDialog::GetRegressionTypeIndex() const
+{
+    if (mxLinearRadioButton->get_active())
+        return 0;
+    if (mxLogarithmicRadioButton->get_active())
+        return 1;
+    return 2;
+}
+
+ScRange ScRegressionDialog::GetDataRange(const ScRange& rRange)
+{
+    if (!mxWithLabelsCheckBox->get_active())
+        return rRange;
+
+    ScRange aDataRange(rRange);
+    if (mGroupedBy == BY_COLUMN)
+        aDataRange.aStart.IncRow(1);
+    else
+        aDataRange.aStart.IncCol(1);
+
+    return aDataRange;
+}
+
+OUString ScRegressionDialog::GetVariableNameFormula(bool bXVar, size_t nIndex, bool bWithLog)
+{
+    if (bXVar && nIndex == 0)
+        return "=\"" + ScResId(STR_LABEL_INTERCEPT) + "\"";
+
+    if (mxWithLabelsCheckBox->get_active())
+    {
+        ScAddress aAddr(bXVar ? mVariable1Range.aStart : mVariable2Range.aStart);
+        if (mGroupedBy == BY_COLUMN)
+            aAddr.IncCol(nIndex - 1);
+        else
+            aAddr.IncRow(nIndex - 1);
+
+        ScRefFlags eAddrFlag = mbUse3DAddresses ? ScRefFlags::ADDR_ABS_3D : ScRefFlags::ADDR_ABS;
+        return bWithLog ? OUString("=CONCAT(\"LN(\";" +
+            aAddr.Format(eAddrFlag, &mDocument, mDocument.GetAddressConvention()) + ";\")\")") :
+            OUString("=" + aAddr.Format(eAddrFlag, &mDocument, mDocument.GetAddressConvention()));
+    }
+
+    OUString aDefaultVarName;
+
+    if (bXVar)
+        aDefaultVarName = "X" + OUString::number(nIndex);
+    else
+        aDefaultVarName = "Y";
+
+    return bWithLog ? OUString("=\"LN(" + aDefaultVarName + ")\"") :
+        OUString("=\"" + aDefaultVarName + "\"");
+}
+
+OUString ScRegressionDialog::GetXVariableNameFormula(size_t nIndex, bool bWithLog)
+{
+    assert(nIndex <= mnNumIndependentVars);
+    return GetVariableNameFormula(true, nIndex, bWithLog);
+}
+
+OUString ScRegressionDialog::GetYVariableNameFormula(bool bWithLog)
+{
+    return GetVariableNameFormula(false, 1, bWithLog);
+}
+
+void ScRegressionDialog::WriteRawRegressionResults(AddressWalkerWriter& rOutput, FormulaTemplate& rTemplate,
+                                                   size_t nRegressionIndex)
+{
+    rOutput.writeBoldString(ScResId(STR_REGRESSION));
+    rOutput.newLine();
+    // REGRESSION MODEL
+    rOutput.writeString(ScResId(STR_LABEL_REGRESSION_MODEL));
+    rOutput.nextColumn();
+    rOutput.writeString(ScResId(constRegressionModel[nRegressionIndex]));
+    rOutput.newLine();
+    rOutput.newLine();
+
+    rOutput.writeString(ScResId(STR_LINEST_RAW_OUTPUT_TITLE));
+    rOutput.newLine();
+    rOutput.push();
+
+    rTemplate.setTemplate(constTemplateLINEST[nRegressionIndex].
+                          replaceFirst("%CALC_INTERCEPT%",
+                                       mbCalcIntercept ? OUStringLiteral("TRUE") : OUStringLiteral("FALSE")));
+    rOutput.writeMatrixFormula(rTemplate.getTemplate(), 1 + mnNumIndependentVars, 5);
+    // Add LINEST result components to template
+    // 1. Add ranges for coefficients and standard errors for indep. vars and the intercept.
+    // Note that these two are in the reverse order(m_n, m_n-1, ..., m_1, b) w.r.t what we expect.
+    rTemplate.autoReplaceRange("%COEFFICIENTS_REV_RANGE%", ScRange(rOutput.current(), rOutput.current(mnNumIndependentVars)));
+    rTemplate.autoReplaceRange("%SERRORSX_REV_RANGE%", ScRange(rOutput.current(0, 1), rOutput.current(mnNumIndependentVars, 1)));
+
+    // 2. Add R-squared and standard error for y estimate.
+    rTemplate.autoReplaceAddress("%RSQUARED_ADDR%", rOutput.current(0, 2));
+    rTemplate.autoReplaceAddress("%SERRORY_ADDR%", rOutput.current(1, 2));
+
+    // 3. Add F statistic and degrees of freedom
+    rTemplate.autoReplaceAddress("%FSTATISTIC_ADDR%", rOutput.current(0, 3));
+    rTemplate.autoReplaceAddress("%DoFRESID_ADDR%", rOutput.current(1, 3));
+
+    // 4. Add regression sum of squares and residual sum of squares
+    rTemplate.autoReplaceAddress("%SSREG_ADDR%", rOutput.current(0, 4));
+    rTemplate.autoReplaceAddress("%SSRESID_ADDR%", rOutput.current(1, 4));
+
+    rOutput.push(0, 4);
+    rOutput.newLine();
+}
+
+void ScRegressionDialog::WriteRegressionStatistics(AddressWalkerWriter& rOutput, FormulaTemplate& rTemplate)
+{
+    rOutput.newLine();
+    rOutput.writeString(ScResId(STR_LABEL_REGRESSION_STATISTICS));
+    rOutput.newLine();
+
+    const char* aMeasureNames[] =
+    {
+        STR_LABEL_RSQUARED,
+        STRID_CALC_STD_ERROR,
+        STR_LABEL_XVARIABLES_COUNT,
+        STR_OBSERVATIONS_LABEL,
+        STR_LABEL_ADJUSTED_RSQUARED
+    };
+
+    OUString aMeasureFormulas[] =
+    {
+        "=%RSQUARED_ADDR%",
+        "=%SERRORY_ADDR%",
+        "=" + OUString::number(mnNumIndependentVars),
+        "=" + OUString::number(mnNumObservations),
+        "=1 - (1 - %RSQUARED_ADDR%)*(%NUMOBS_ADDR% - 1)/(%NUMOBS_ADDR% - %NUMXVARS_ADDR%" +
+            (mbCalcIntercept ? OUStringLiteral(" - 1)") : OUStringLiteral(")"))
+    };
+
+    rTemplate.autoReplaceAddress("%NUMXVARS_ADDR%", rOutput.current(1, 2));
+    rTemplate.autoReplaceAddress("%NUMOBS_ADDR%", rOutput.current(1, 3));
+
+    for (size_t nIdx = 0; nIdx < SAL_N_ELEMENTS(aMeasureNames); ++nIdx)
+    {
+        rOutput.writeString(ScResId(aMeasureNames[nIdx]));
+        rOutput.nextColumn();
+        rTemplate.setTemplate(aMeasureFormulas[nIdx]);
+        rOutput.writeFormula(rTemplate.getTemplate());
+        rOutput.newLine();
+    }
+}
+
+void ScRegressionDialog::WriteRegressionANOVAResults(AddressWalkerWriter& rOutput, FormulaTemplate& rTemplate)
+{
+    rOutput.newLine();
+    rOutput.writeString(ScResId(STR_LABEL_ANOVA));
+    rOutput.newLine();
+
+    const size_t nColsInTable = 6;
+    const size_t nRowsInTable = 4;
+    OUString aTable[nRowsInTable][nColsInTable] =
+    {
+        {
+            "",
+            ScResId(STR_ANOVA_LABEL_DF),
+            ScResId(STR_ANOVA_LABEL_SS),
+            ScResId(STR_ANOVA_LABEL_MS),
+            ScResId(STR_ANOVA_LABEL_F),
+            ScResId(STR_ANOVA_LABEL_SIGNIFICANCE_F)
+        },
+        {
+            ScResId(STR_REGRESSION),
+            "=%NUMXVARS_ADDR%",
+            "=%SSREG_ADDR%",
+            "=%SSREG_ADDR% / %DoFREG_ADDR%",
+            "=%FSTATISTIC_ADDR%",
+            "=FDIST(%FSTATISTIC_ADDR% ; %DoFREG_ADDR% ; %DoFRESID_ADDR%)"
+        },
+        {
+            ScResId(STR_LABEL_RESIDUAL),
+            "=%DoFRESID_ADDR%",
+            "=%SSRESID_ADDR%",
+            "=%SSRESID_ADDR% / %DoFRESID_ADDR%",
+            "",
+            ""
+        },
+        {
+            ScResId(STR_ANOVA_LABEL_TOTAL),
+            "=%DoFREG_ADDR% + %DoFRESID_ADDR%",
+            "=%SSREG_ADDR% + %SSRESID_ADDR%",
+            "",
+            "",
+            ""
+        }
+    };
+
+    rTemplate.autoReplaceAddress("%DoFREG_ADDR%", rOutput.current(1, 1));
+
+    // Cell getter lambda
+    std::function<CellValueGetter> aCellGetterFunc = [&aTable](size_t nRowIdx, size_t nColIdx) -> const OUString&
+    {
+        return aTable[nRowIdx][nColIdx];
+    };
+
+    // Cell writer lambda
+    std::function<CellWriter> aCellWriterFunc = [&rOutput, &rTemplate]
+        (const OUString& rContent, size_t /*nRowIdx*/, size_t /*nColIdx*/)
+    {
+        if (!rContent.isEmpty())
+        {
+            if (rContent.startsWith("="))
+            {
+                rTemplate.setTemplate(rContent);
+                rOutput.writeFormula(rTemplate.getTemplate());
+            }
+            else
+                rOutput.writeString(rContent);
+        }
+    };
+
+    WriteTable(aCellGetterFunc, nRowsInTable, nColsInTable, rOutput, aCellWriterFunc);
+
+    // User given confidence level
+    rOutput.newLine();
+    rOutput.writeString(ScResId(STR_LABEL_CONFIDENCE_LEVEL));
+    rOutput.nextColumn();
+    rOutput.writeValue(mxConfidenceLevelField->get_value() / 100.0);
+    rTemplate.autoReplaceAddress("%CONFIDENCE_LEVEL_ADDR%", rOutput.current());
+    rOutput.newLine();
+}
+
+// Write slopes, intercept, their standard errors, t-statistics, p-value, confidence intervals
+void ScRegressionDialog::WriteRegressionEstimatesWithCI(AddressWalkerWriter& rOutput, FormulaTemplate& rTemplate,
+                                                        bool bTakeLogX)
+{
+    rOutput.newLine();
+    SCROW nLastRow = rOutput.current(0, 1 + mnNumIndependentVars).Row();
+
+    // Coefficients & Std.Errors ranges (column vectors) in this table (yet to populate).
+    rTemplate.autoReplaceRange("%COEFFICIENTS_RANGE%",
+                               ScRange(rOutput.current(1, 1),
+                                       rOutput.current(1, 1 + mnNumIndependentVars)));
+    rTemplate.autoReplaceRange("%SLOPES_RANGE%",  // Excludes the intercept
+                               ScRange(rOutput.current(1, 2),
+                                       rOutput.current(1, 1 + mnNumIndependentVars)));
+    rTemplate.autoReplaceAddress("%INTERCEPT_ADDR%", rOutput.current(1, 1));
+    rTemplate.autoReplaceRange("%SERRORSX_RANGE%",
+                               ScRange(rOutput.current(2, 1),
+                                       rOutput.current(2, 1 + mnNumIndependentVars)));
+    // t-Statistics range in this table (yet to populate)
+    rTemplate.autoReplaceRange("%TSTAT_RANGE%",
+                               ScRange(rOutput.current(3, 1),
+                                       rOutput.current(3, 1 + mnNumIndependentVars)));
+
+    const size_t nColsInTable = 7;
+    const size_t nRowsInTable = 2;
+    OUString aTable[nRowsInTable][nColsInTable] =
+    {
+        {
+            "",
+            ScResId(STR_LABEL_COEFFICIENTS),
+            ScResId(STRID_CALC_STD_ERROR),
+            ScResId(STR_LABEL_TSTATISTIC),
+            ScResId(STR_P_VALUE_LABEL),
+
+            "=CONCAT(\"" + ScResId(STR_LABEL_LOWER) +
+            " \" ; INT(%CONFIDENCE_LEVEL_ADDR% * 100) ; \"%\")",
+
+            "=CONCAT(\"" + ScResId(STR_LABEL_UPPER) +
+            " \" ; INT(%CONFIDENCE_LEVEL_ADDR% * 100) ; \"%\")",
+        },
+
+        // Following are matrix formulas of size numcols = 1, numrows = (mnNumIndependentVars + 1)
+        {
+            "",
+            // This puts the coefficients in the reverse order compared to that in LINEST output.
+            "=INDEX(%COEFFICIENTS_REV_RANGE%; 1 ; " + OUString::number(nLastRow + 2) + " - ROW())",
+            // This puts the standard errors in the reverse order compared to that in LINEST output.
+            "=INDEX(%SERRORSX_REV_RANGE%; 1 ; " + OUString::number(nLastRow + 2) + " - ROW())",
+            // t-Statistic
+            "=%COEFFICIENTS_RANGE% / %SERRORSX_RANGE%",
+            // p-Value
+            "=TDIST(ABS(%TSTAT_RANGE%) ; %DoFRESID_ADDR% ; 2 )",
+            // Lower limit of confidence interval
+            "=%COEFFICIENTS_RANGE% - %SERRORSX_RANGE% * "
+            "TINV(1 - %CONFIDENCE_LEVEL_ADDR% ; %DoFRESID_ADDR%)",
+            // Upper limit of confidence interval
+            "=%COEFFICIENTS_RANGE% + %SERRORSX_RANGE% * "
+            "TINV(1 - %CONFIDENCE_LEVEL_ADDR% ; %DoFRESID_ADDR%)"
+        }
+    };
+
+    // Cell getter lambda
+    std::function<CellValueGetter> aCellGetterFunc = [&aTable](size_t nRowIdx, size_t nColIdx) -> const OUString&
+    {
+        return aTable[nRowIdx][nColIdx];
+    };
+
+    // Cell writer lambda
+    size_t nNumIndependentVars = mnNumIndependentVars;
+    std::function<CellWriter> aCellWriterFunc = [&rOutput, &rTemplate, nNumIndependentVars]
+        (const OUString& rContent, size_t nRowIdx, size_t /*nColIdx*/)
+    {
+        if (!rContent.isEmpty())
+        {
+            if (rContent.startsWith("="))
+            {
+                rTemplate.setTemplate(rContent);
+                if (nRowIdx == 0)
+                    rOutput.writeFormula(rTemplate.getTemplate());
+                else
+                    rOutput.writeMatrixFormula(rTemplate.getTemplate(), 1, 1 + nNumIndependentVars);
+            }
+            else
+                rOutput.writeString(rContent);
+        }
+    };
+
+    WriteTable(aCellGetterFunc, nRowsInTable, nColsInTable, rOutput, aCellWriterFunc);
+
+    // Go back to the second row and first column of the table to
+    // fill the names of variables + intercept
+    rOutput.push(0, -1);
+
+    for (size_t nXvarIdx = 0; nXvarIdx <= mnNumIndependentVars; ++nXvarIdx)
+    {
+        rOutput.writeFormula(GetXVariableNameFormula(nXvarIdx, bTakeLogX));
+        rOutput.newLine();
+    }
+
+}
+
+// Re-write all observations in group-by column mode with predictions and residuals
+void ScRegressionDialog::WritePredictionsWithResiduals(AddressWalkerWriter& rOutput, FormulaTemplate& rTemplate,
+                                                       size_t nRegressionIndex)
+{
+    bool bGroupedByColumn = mGroupedBy == BY_COLUMN;
+    rOutput.newLine();
+    rOutput.push();
+
+    // Range of X variables with rows as observations and columns as variables.
+    ScRange aDataMatrixRange(rOutput.current(0, 1), rOutput.current(mnNumIndependentVars - 1, mnNumObservations));
+    rTemplate.autoReplaceRange("%XDATAMATRIX_RANGE%", aDataMatrixRange);
+
+    // Write X variable names
+    for (size_t nXvarIdx = 1; nXvarIdx <= mnNumIndependentVars; ++nXvarIdx)
+    {
+        // Here we write the X variables without any transformation(LN)
+        rOutput.writeFormula(GetXVariableNameFormula(nXvarIdx, false));
+        rOutput.nextColumn();
+    }
+    rOutput.reset();
+
+    // Write the X data matrix
+    rOutput.nextRow();
+    OUString aDataMatrixFormula = bGroupedByColumn ? OUString("=%VARIABLE1_RANGE%") : OUString("=TRANSPOSE(%VARIABLE1_RANGE%)");
+    rTemplate.setTemplate(aDataMatrixFormula);
+    rOutput.writeMatrixFormula(rTemplate.getTemplate(), mnNumIndependentVars, mnNumObservations);
+
+    // Write predicted values
+    rOutput.push(mnNumIndependentVars, -1);
+    rOutput.writeString(ScResId(STR_LABEL_PREDICTEDY));
+    rOutput.nextRow();
+    rTemplate.setTemplate(constRegressionFormula[nRegressionIndex]);
+    rOutput.writeMatrixFormula(rTemplate.getTemplate(), 1, mnNumObservations);
+    rTemplate.autoReplaceRange("%PREDICTEDY_RANGE%", ScRange(rOutput.current(), rOutput.current(0, mnNumObservations - 1)));
+
+    // Write actual Y
+    rOutput.push(1, -1);
+    rOutput.writeFormula(GetYVariableNameFormula(false));
+    rOutput.nextRow();
+    OUString aYVectorFormula = bGroupedByColumn ? OUString("=%VARIABLE2_RANGE%") : OUString("=TRANSPOSE(%VARIABLE2_RANGE%)");
+    rTemplate.setTemplate(aYVectorFormula);
+    rOutput.writeMatrixFormula(rTemplate.getTemplate(), 1, mnNumObservations);
+    rTemplate.autoReplaceRange("%ACTUALY_RANGE%", ScRange(rOutput.current(), rOutput.current(0, mnNumObservations - 1)));
+
+    // Write residual
+    rOutput.push(1, -1);
+    rOutput.writeString(ScResId(STR_LABEL_RESIDUAL));
+    rOutput.nextRow();
+    rTemplate.setTemplate("=%ACTUALY_RANGE% - %PREDICTEDY_RANGE%");
+    rOutput.writeMatrixFormula(rTemplate.getTemplate(), 1, mnNumObservations);
+}
+
+// Generic table writer
+void ScRegressionDialog::WriteTable(const std::function<CellValueGetter>& rCellGetter,
+                                    size_t nRowsInTable, size_t nColsInTable,
+                                    AddressWalkerWriter& rOutput,
+                                    const std::function<CellWriter>& rFunc)
+{
+    for (size_t nRowIdx = 0; nRowIdx < nRowsInTable; ++nRowIdx)
+    {
+        for (size_t nColIdx = 0; nColIdx < nColsInTable; ++nColIdx)
+        {
+            rFunc(rCellGetter(nRowIdx, nColIdx), nRowIdx, nColIdx);
+            rOutput.nextColumn();
+        }
+        rOutput.newLine();
+    }
+}
+
+IMPL_LINK_NOARG(ScRegressionDialog, CheckBoxHdl, weld::ToggleButton&, void)
+{
+    ValidateDialogInput();
+}
+
+IMPL_LINK_NOARG(ScRegressionDialog, NumericFieldHdl, weld::SpinButton&, void)
+{
+    ValidateDialogInput();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/SamplingDialog.cxx b/sc/source/ui/StatisticsDialogs/SamplingDialog.cxx
new file mode 100644
index 000000000..62a93829c
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/SamplingDialog.cxx
@@ -0,0 +1,554 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <svl/undo.hxx>
+#include <comphelper/random.hxx>
+#include <rangelst.hxx>
+#include <docsh.hxx>
+#include <document.hxx>
+#include <reffact.hxx>
+#include <docfunc.hxx>
+#include <SamplingDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+ScSamplingDialog::ScSamplingDialog(SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                                   weld::Window* pParent, ScViewData* pViewData)
+    : ScAnyRefDlgController(pSfxBindings, pChildWindow, pParent,
+                          "modules/scalc/ui/samplingdialog.ui", "SamplingDialog")
+    , mpActiveEdit(nullptr)
+    , mViewData(pViewData)
+    , mDocument(*pViewData->GetDocument())
+    , mInputRange(ScAddress::INITIALIZE_INVALID)
+    , mAddressDetails(mDocument.GetAddressConvention(), 0, 0)
+    , mOutputAddress(ScAddress::INITIALIZE_INVALID)
+    , mCurrentAddress(pViewData->GetCurX(), pViewData->GetCurY(), pViewData->GetTabNo())
+    , mnLastSampleSizeValue(1)
+    , mnLastPeriodValue(1)
+    , mDialogLostFocus(false)
+    , mxInputRangeLabel(m_xBuilder->weld_label("input-range-label"))
+    , mxInputRangeEdit(new formula::RefEdit(m_xBuilder->weld_entry("input-range-edit")))
+    , mxInputRangeButton(new formula::RefButton(m_xBuilder->weld_button("input-range-button")))
+    , mxOutputRangeLabel(m_xBuilder->weld_label("output-range-label"))
+    , mxOutputRangeEdit(new formula::RefEdit(m_xBuilder->weld_entry("output-range-edit")))
+    , mxOutputRangeButton(new formula::RefButton(m_xBuilder->weld_button("output-range-button")))
+    , mxSampleSize(m_xBuilder->weld_spin_button("sample-size-spin"))
+    , mxPeriod(m_xBuilder->weld_spin_button("period-spin"))
+    , mxRandomMethodRadio(m_xBuilder->weld_radio_button("random-method-radio"))
+    , mxWithReplacement(m_xBuilder->weld_check_button("with-replacement"))
+    , mxKeepOrder(m_xBuilder->weld_check_button("keep-order"))
+    , mxPeriodicMethodRadio(m_xBuilder->weld_radio_button("periodic-method-radio"))
+    , mxButtonOk(m_xBuilder->weld_button("ok"))
+{
+    mxInputRangeEdit->SetReferences(this, mxInputRangeLabel.get());
+    mxInputRangeButton->SetReferences(this, mxInputRangeEdit.get());
+
+    mxOutputRangeEdit->SetReferences(this, mxOutputRangeLabel.get());
+    mxOutputRangeButton->SetReferences(this, mxOutputRangeEdit.get());
+
+    Init();
+    GetRangeFromSelection();
+}
+
+ScSamplingDialog::~ScSamplingDialog()
+{
+}
+
+void ScSamplingDialog::Init()
+{
+    mxButtonOk->connect_clicked( LINK( this, ScSamplingDialog, OkClicked ) );
+    mxButtonOk->set_sensitive(false);
+
+    Link<formula::RefEdit&,void> aEditLink = LINK( this, ScSamplingDialog, GetEditFocusHandler );
+    mxInputRangeEdit->SetGetFocusHdl( aEditLink );
+    mxOutputRangeEdit->SetGetFocusHdl( aEditLink );
+    Link<formula::RefButton&,void> aButtonLink = LINK( this, ScSamplingDialog, GetButtonFocusHandler );
+    mxInputRangeButton->SetGetFocusHdl( aButtonLink );
+    mxOutputRangeButton->SetGetFocusHdl( aButtonLink );
+
+    aEditLink = LINK( this, ScSamplingDialog, LoseEditFocusHandler );
+    mxInputRangeEdit->SetLoseFocusHdl( aEditLink );
+    mxOutputRangeEdit->SetLoseFocusHdl( aEditLink );
+    aButtonLink = LINK( this, ScSamplingDialog, LoseButtonFocusHandler );
+    mxInputRangeButton->SetLoseFocusHdl( aButtonLink );
+    mxOutputRangeButton->SetLoseFocusHdl( aButtonLink );
+
+    Link<formula::RefEdit&,void> aLink2 = LINK( this, ScSamplingDialog, RefInputModifyHandler);
+    mxInputRangeEdit->SetModifyHdl( aLink2);
+    mxOutputRangeEdit->SetModifyHdl( aLink2);
+
+    mxSampleSize->connect_value_changed( LINK( this, ScSamplingDialog, SamplingSizeValueModified ));
+    mxPeriod->connect_value_changed( LINK( this, ScSamplingDialog, PeriodValueModified ));
+
+    mxPeriodicMethodRadio->connect_toggled( LINK( this, ScSamplingDialog, ToggleSamplingMethod ) );
+    mxRandomMethodRadio->connect_toggled( LINK( this, ScSamplingDialog, ToggleSamplingMethod ) );
+
+    mxWithReplacement->connect_clicked( LINK( this, ScSamplingDialog, CheckHdl));
+    mxKeepOrder->connect_clicked( LINK( this, ScSamplingDialog, CheckHdl));
+
+    mxOutputRangeEdit->GrabFocus();
+    mxPeriodicMethodRadio->set_active(true);
+
+    ToggleSamplingMethod();
+}
+
+void ScSamplingDialog::GetRangeFromSelection()
+{
+    mViewData->GetSimpleArea(mInputRange);
+    OUString aCurrentString(mInputRange.Format(mDocument, ScRefFlags::RANGE_ABS_3D, mAddressDetails));
+    mxInputRangeEdit->SetText(aCurrentString);
+}
+
+void ScSamplingDialog::SetActive()
+{
+    if ( mDialogLostFocus )
+    {
+        mDialogLostFocus = false;
+        if( mpActiveEdit )
+            mpActiveEdit->GrabFocus();
+    }
+    else
+    {
+        m_xDialog->grab_focus();
+    }
+    RefInputDone();
+}
+
+void ScSamplingDialog::Close()
+{
+    DoClose( ScSamplingDialogWrapper::GetChildWindowId() );
+}
+
+void ScSamplingDialog::SetReference( const ScRange& rReferenceRange, ScDocument& rDocument )
+{
+    if ( mpActiveEdit )
+    {
+        if ( rReferenceRange.aStart != rReferenceRange.aEnd )
+            RefInputStart( mpActiveEdit );
+
+        OUString aReferenceString;
+
+        if ( mpActiveEdit == mxInputRangeEdit.get() )
+        {
+            mInputRange = rReferenceRange;
+            aReferenceString = mInputRange.Format(rDocument, ScRefFlags::RANGE_ABS_3D, mAddressDetails);
+            mxInputRangeEdit->SetRefString( aReferenceString );
+
+            LimitSampleSizeAndPeriod();
+        }
+        else if ( mpActiveEdit == mxOutputRangeEdit.get() )
+        {
+            mOutputAddress = rReferenceRange.aStart;
+
+            ScRefFlags nFormat = ( mOutputAddress.Tab() == mCurrentAddress.Tab() ) ?
+                                                             ScRefFlags::ADDR_ABS :
+                                                             ScRefFlags::ADDR_ABS_3D;
+            aReferenceString = mOutputAddress.Format(nFormat, &rDocument, rDocument.GetAddressConvention());
+            mxOutputRangeEdit->SetRefString( aReferenceString );
+
+            // Change sampling size according to output range selection
+            sal_Int64 aSelectedSampleSize = rReferenceRange.aEnd.Row() - rReferenceRange.aStart.Row() + 1;
+            if (aSelectedSampleSize > 1)
+                mxSampleSize->set_value(aSelectedSampleSize);
+            SamplingSizeValueModified(*mxSampleSize);
+        }
+    }
+
+    // Enable OK if both, input range and output address are set.
+    // Disable if at least one is invalid.
+    mxButtonOk->set_sensitive(mInputRange.IsValid() && mOutputAddress.IsValid());
+}
+
+ScRange ScSamplingDialog::PerformPeriodicSampling(ScDocShell* pDocShell)
+{
+    ScAddress aStart = mInputRange.aStart;
+    ScAddress aEnd   = mInputRange.aEnd;
+
+    SCTAB outTab = mOutputAddress.Tab();
+    SCROW outRow = mOutputAddress.Row();
+
+    sal_Int64 aPeriod = mxPeriod->get_value();
+
+    for (SCROW inTab = aStart.Tab(); inTab <= aEnd.Tab(); inTab++)
+    {
+        SCCOL outCol = mOutputAddress.Col();
+        for (SCCOL inCol = aStart.Col(); inCol <= aEnd.Col(); inCol++)
+        {
+            sal_Int64 i = 0;
+            outRow = mOutputAddress.Row();
+            for (SCROW inRow = aStart.Row(); inRow <= aEnd.Row(); inRow++)
+            {
+                assert(aPeriod && "div-by-zero");
+                if (i % aPeriod == aPeriod - 1 ) // Sample the last of period
+                {
+                    double aValue = mDocument.GetValue(ScAddress(inCol, inRow, inTab));
+                    pDocShell->GetDocFunc().SetValueCell(ScAddress(outCol, outRow, outTab), aValue, true);
+                    outRow++;
+                }
+                i++;
+            }
+            outCol++;
+        }
+        outTab++;
+    }
+
+    return ScRange(mOutputAddress, ScAddress(outTab, outRow, outTab) );
+}
+
+ScRange ScSamplingDialog::PerformRandomSampling(ScDocShell* pDocShell)
+{
+    ScAddress aStart = mInputRange.aStart;
+    ScAddress aEnd   = mInputRange.aEnd;
+
+    SCTAB outTab = mOutputAddress.Tab();
+    SCROW outRow = mOutputAddress.Row();
+
+    const sal_Int64 nSampleSize = mxSampleSize->get_value();
+
+    // This implementation groups by columns. Other options could be grouping
+    // by rows or area.
+    const sal_Int64 nPopulationSize = aEnd.Row() - aStart.Row() + 1;
+
+    const bool bWithReplacement = mxWithReplacement->get_sensitive() && mxWithReplacement->get_active();
+
+    // WOR (WithOutReplacement) can't draw more than population. Catch that in
+    // the caller.
+    assert( bWithReplacement || nSampleSize <= nPopulationSize);
+    if (!bWithReplacement && nSampleSize > nPopulationSize)
+        // Would enter an endless loop below, bail out.
+        return ScRange( mOutputAddress);
+
+    for (SCROW inTab = aStart.Tab(); inTab <= aEnd.Tab(); inTab++)
+    {
+        SCCOL outCol = mOutputAddress.Col();
+        for (SCCOL inCol = aStart.Col(); inCol <= aEnd.Col(); inCol++)
+        {
+            outRow = mOutputAddress.Row();
+            std::vector<bool> vUsed( nPopulationSize, false);
+
+            while ((outRow - mOutputAddress.Row()) < nSampleSize)
+            {
+                // [a,b] *both* inclusive
+                SCROW nRandom = comphelper::rng::uniform_int_distribution( aStart.Row(), aEnd.Row());
+
+                if (!bWithReplacement)
+                {
+                    nRandom -= aStart.Row();
+                    if (vUsed[nRandom])
+                    {
+                        // Find a nearest one, preferring forwards.
+                        // Again: it's essential that the loop is entered only
+                        // if nSampleSize<=nPopulationSize, which is checked
+                        // above.
+                        SCROW nBack = nRandom;
+                        SCROW nForw = nRandom;
+                        do
+                        {
+                            if (nForw < nPopulationSize - 1 && !vUsed[++nForw])
+                            {
+                                nRandom = nForw;
+                                break;
+                            }
+                            if (nBack > 0 && !vUsed[--nBack])
+                            {
+                                nRandom = nBack;
+                                break;
+                            }
+                        }
+                        while (true);
+                    }
+                    vUsed[nRandom] = true;
+                    nRandom += aStart.Row();
+                }
+
+                const double fValue = mDocument.GetValue( ScAddress(inCol, nRandom, inTab) );
+                pDocShell->GetDocFunc().SetValueCell(ScAddress(outCol, outRow, outTab), fValue, true);
+                outRow++;
+            }
+            outCol++;
+        }
+        outTab++;
+    }
+
+    return ScRange(mOutputAddress, ScAddress(outTab, outRow, outTab) );
+}
+
+ScRange ScSamplingDialog::PerformRandomSamplingKeepOrder(ScDocShell* pDocShell)
+{
+    ScAddress aStart = mInputRange.aStart;
+    ScAddress aEnd   = mInputRange.aEnd;
+
+    SCTAB outTab = mOutputAddress.Tab();
+    SCROW outRow = mOutputAddress.Row();
+
+    SCROW inRow;
+
+    sal_Int64 aSampleSize = mxSampleSize->get_value();
+
+    for (SCROW inTab = aStart.Tab(); inTab <= aEnd.Tab(); inTab++)
+    {
+        SCCOL outCol = mOutputAddress.Col();
+        for (SCCOL inCol = aStart.Col(); inCol <= aEnd.Col(); inCol++)
+        {
+            SCROW aPopulationSize = (aEnd.Row() - aStart.Row()) + 1;
+
+            outRow = mOutputAddress.Row();
+            inRow  = aStart.Row();
+
+            while ((outRow - mOutputAddress.Row()) < aSampleSize)
+            {
+                double aRandomValue = comphelper::rng::uniform_real_distribution();
+
+                if ( (aPopulationSize - (inRow - aStart.Row())) * aRandomValue >= aSampleSize - (outRow - mOutputAddress.Row()) )
+                {
+                    inRow++;
+                }
+                else
+                {
+                    double aValue = mDocument.GetValue( ScAddress(inCol, inRow, inTab) );
+                    pDocShell->GetDocFunc().SetValueCell(ScAddress(outCol, outRow, outTab), aValue, true);
+                    inRow++;
+                    outRow++;
+                }
+            }
+            outCol++;
+        }
+        outTab++;
+    }
+
+    return ScRange(mOutputAddress, ScAddress(outTab, outRow, outTab) );
+}
+
+void ScSamplingDialog::PerformSampling()
+{
+    OUString aUndo(ScResId(STR_SAMPLING_UNDO_NAME));
+    ScDocShell* pDocShell = mViewData->GetDocShell();
+    SfxUndoManager* pUndoManager = pDocShell->GetUndoManager();
+
+    ScRange aModifiedRange;
+
+    pUndoManager->EnterListAction( aUndo, aUndo, 0, mViewData->GetViewShell()->GetViewShellId() );
+
+    if (mxRandomMethodRadio->get_active())
+    {
+        if (mxKeepOrder->get_sensitive() && mxKeepOrder->get_active())
+            aModifiedRange = PerformRandomSamplingKeepOrder(pDocShell);
+        else
+            aModifiedRange = PerformRandomSampling(pDocShell);
+    }
+    else if (mxPeriodicMethodRadio->get_active())
+    {
+        aModifiedRange = PerformPeriodicSampling(pDocShell);
+    }
+
+    pUndoManager->LeaveListAction();
+    pDocShell->PostPaint(aModifiedRange, PaintPartFlags::Grid);
+}
+
+sal_Int64 ScSamplingDialog::GetPopulationSize() const
+{
+    return mInputRange.IsValid() ? mInputRange.aEnd.Row() - mInputRange.aStart.Row() + 1 : 0;
+}
+
+void ScSamplingDialog::LimitSampleSizeAndPeriod()
+{
+    // Limit sample size (for WOR methods) and period if population is smaller
+    // than last known value. When enlargening the input population range the
+    // values will be adjusted up to the last known value again.
+    const sal_Int64 nPopulationSize = GetPopulationSize();
+    if (nPopulationSize <= mnLastSampleSizeValue && !mxWithReplacement->get_active())
+        mxSampleSize->set_value( nPopulationSize);
+    if (nPopulationSize <= mnLastPeriodValue)
+        mxPeriod->set_value( nPopulationSize);
+}
+
+IMPL_LINK_NOARG(ScSamplingDialog, SamplingSizeValueModified, weld::SpinButton&, void)
+{
+    if (!mxWithReplacement->get_active())
+    {
+        // For all WOR methods limit sample size to population size.
+        const sal_Int64 nPopulationSize = GetPopulationSize();
+        if (mxSampleSize->get_value() > nPopulationSize)
+            mxSampleSize->set_value(nPopulationSize);
+    }
+    mnLastSampleSizeValue = mxSampleSize->get_value();
+}
+
+IMPL_LINK_NOARG(ScSamplingDialog, PeriodValueModified, weld::SpinButton&, void)
+{
+    // Limit period to population size.
+    const sal_Int64 nPopulationSize = GetPopulationSize();
+    if (mxPeriod->get_value() > nPopulationSize)
+        mxPeriod->set_value(nPopulationSize);
+    mnLastPeriodValue = mxPeriod->get_value();
+}
+
+IMPL_LINK( ScSamplingDialog, GetEditFocusHandler, formula::RefEdit&, rCtrl, void )
+{
+    if (&rCtrl == mxInputRangeEdit.get())
+        mpActiveEdit = mxInputRangeEdit.get();
+    else if (&rCtrl == mxOutputRangeEdit.get())
+        mpActiveEdit = mxOutputRangeEdit.get();
+    else
+        mpActiveEdit = nullptr;
+
+    if (mpActiveEdit)
+        mpActiveEdit->SelectAll();
+}
+
+IMPL_LINK(ScSamplingDialog, GetButtonFocusHandler, formula::RefButton&, rCtrl, void)
+{
+    if (&rCtrl == mxInputRangeButton.get())
+        mpActiveEdit = mxInputRangeEdit.get();
+    else if (&rCtrl == mxOutputRangeButton.get())
+        mpActiveEdit = mxOutputRangeEdit.get();
+    else
+        mpActiveEdit = nullptr;
+
+    if (mpActiveEdit)
+        mpActiveEdit->SelectAll();
+}
+
+
+IMPL_LINK_NOARG(ScSamplingDialog, OkClicked, weld::Button&, void)
+{
+    PerformSampling();
+    response(RET_OK);
+}
+
+IMPL_LINK_NOARG(ScSamplingDialog, LoseEditFocusHandler, formula::RefEdit&, void)
+{
+    mDialogLostFocus = !m_xDialog->has_toplevel_focus();
+}
+
+IMPL_LINK_NOARG(ScSamplingDialog, LoseButtonFocusHandler, formula::RefButton&, void)
+{
+    mDialogLostFocus = !m_xDialog->has_toplevel_focus();
+}
+
+IMPL_LINK_NOARG(ScSamplingDialog, ToggleSamplingMethod, weld::ToggleButton&, void)
+{
+    ToggleSamplingMethod();
+}
+
+void ScSamplingDialog::ToggleSamplingMethod()
+{
+    if (mxRandomMethodRadio->get_active())
+    {
+        mxPeriod->set_sensitive(false);
+        mxSampleSize->set_sensitive(true);
+        mxWithReplacement->set_sensitive(true);
+        mxKeepOrder->set_sensitive(true);
+    }
+    else if (mxPeriodicMethodRadio->get_active())
+    {
+        // WOR keeping order.
+        mxPeriod->set_sensitive(true);
+        mxSampleSize->set_sensitive(false);
+        mxWithReplacement->set_active(false);
+        mxWithReplacement->set_sensitive(false);
+        mxKeepOrder->set_active(true);
+        mxKeepOrder->set_sensitive(false);
+    }
+}
+
+IMPL_LINK(ScSamplingDialog, CheckHdl, weld::Button&, rBtn, void)
+{
+    // Keep both checkboxes enabled so user can easily switch between the three
+    // possible combinations (one or the other or none), just uncheck the other
+    // one if one is checked. Otherwise the other checkbox would had to be
+    // disabled until user unchecks the enabled one again, which would force
+    // user to two clicks to switch.
+    if (&rBtn == mxWithReplacement.get())
+    {
+        if (mxWithReplacement->get_active())
+        {
+            // For WR can't keep order.
+            mxKeepOrder->set_active(false);
+        }
+        else
+        {
+            // For WOR limit sample size to population size.
+            SamplingSizeValueModified(*mxSampleSize);
+        }
+    }
+    else if (&rBtn == mxKeepOrder.get())
+    {
+        if (mxKeepOrder->get_active())
+        {
+            // Keep order is always WOR.
+            mxWithReplacement->set_active(false);
+            SamplingSizeValueModified(*mxSampleSize);
+        }
+    }
+}
+
+IMPL_LINK_NOARG(ScSamplingDialog, RefInputModifyHandler, formula::RefEdit&, void)
+{
+    if ( mpActiveEdit )
+    {
+        if ( mpActiveEdit == mxInputRangeEdit.get() )
+        {
+            ScRangeList aRangeList;
+            bool bValid = ParseWithNames( aRangeList, mxInputRangeEdit->GetText(), mDocument);
+            const ScRange* pRange = (bValid && aRangeList.size() == 1) ? &aRangeList[0] : nullptr;
+            if (pRange)
+            {
+                mInputRange = *pRange;
+                // Highlight the resulting range.
+                mxInputRangeEdit->StartUpdateData();
+
+                LimitSampleSizeAndPeriod();
+            }
+            else
+            {
+                mInputRange = ScRange( ScAddress::INITIALIZE_INVALID);
+            }
+        }
+        else if ( mpActiveEdit == mxOutputRangeEdit.get() )
+        {
+            ScRangeList aRangeList;
+            bool bValid = ParseWithNames( aRangeList, mxOutputRangeEdit->GetText(), mDocument);
+            const ScRange* pRange = (bValid && aRangeList.size() == 1) ? &aRangeList[0] : nullptr;
+            if (pRange)
+            {
+                mOutputAddress = pRange->aStart;
+
+                // Crop output range to top left address for Edit field.
+                if (pRange->aStart != pRange->aEnd)
+                {
+                    ScRefFlags nFormat = ( mOutputAddress.Tab() == mCurrentAddress.Tab() ) ?
+                                                                     ScRefFlags::ADDR_ABS :
+                                                                     ScRefFlags::ADDR_ABS_3D;
+                    OUString aReferenceString = mOutputAddress.Format(nFormat, &mDocument, mDocument.GetAddressConvention());
+                    mxOutputRangeEdit->SetRefString( aReferenceString );
+                }
+
+                // Change sampling size according to output range selection
+                sal_Int64 aSelectedSampleSize = pRange->aEnd.Row() - pRange->aStart.Row() + 1;
+                if (aSelectedSampleSize > 1)
+                    mxSampleSize->set_value(aSelectedSampleSize);
+                SamplingSizeValueModified(*mxSampleSize);
+
+                // Highlight the resulting range.
+                mxOutputRangeEdit->StartUpdateData();
+            }
+            else
+            {
+                mOutputAddress = ScAddress( ScAddress::INITIALIZE_INVALID);
+            }
+        }
+    }
+
+    // Enable OK if both, input range and output address are set.
+    mxButtonOk->set_sensitive(mInputRange.IsValid() && mOutputAddress.IsValid());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/StatisticsInputOutputDialog.cxx b/sc/source/ui/StatisticsDialogs/StatisticsInputOutputDialog.cxx
new file mode 100644
index 000000000..959d7ee2d
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/StatisticsInputOutputDialog.cxx
@@ -0,0 +1,298 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <svl/undo.hxx>
+
+#include <rangelst.hxx>
+#include <docsh.hxx>
+#include <document.hxx>
+#include <scresid.hxx>
+#include <tabvwsh.hxx>
+
+#include <StatisticsInputOutputDialog.hxx>
+
+ScRangeList ScStatisticsInputOutputDialog::MakeColumnRangeList(SCTAB aTab, ScAddress const & aStart, ScAddress const & aEnd)
+{
+    ScRangeList aRangeList;
+    for (SCCOL inCol = aStart.Col(); inCol <= aEnd.Col(); inCol++)
+    {
+        ScRange aColumnRange (
+            ScAddress(inCol, aStart.Row(), aTab),
+            ScAddress(inCol, aEnd.Row(),   aTab) );
+
+        aRangeList.push_back(aColumnRange);
+    }
+    return aRangeList;
+}
+
+ScRangeList ScStatisticsInputOutputDialog::MakeRowRangeList(SCTAB aTab, ScAddress const & aStart, ScAddress const & aEnd)
+{
+    ScRangeList aRangeList;
+    for (SCROW inRow = aStart.Row(); inRow <= aEnd.Row(); inRow++)
+    {
+        ScRange aRowRange (
+            ScAddress(aStart.Col(), inRow, aTab),
+            ScAddress(aEnd.Col(),   inRow, aTab) );
+
+        aRangeList.push_back(aRowRange);
+    }
+    return aRangeList;
+}
+
+ScStatisticsInputOutputDialog::ScStatisticsInputOutputDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData, const OUString& rUIXMLDescription, const OString& rID)
+    : ScAnyRefDlgController(pSfxBindings, pChildWindow, pParent, rUIXMLDescription, rID)
+    , mxInputRangeLabel(m_xBuilder->weld_label("input-range-label"))
+    , mxInputRangeEdit(new formula::RefEdit(m_xBuilder->weld_entry("input-range-edit")))
+    , mxInputRangeButton(new formula::RefButton(m_xBuilder->weld_button("input-range-button")))
+    , mxOutputRangeLabel(m_xBuilder->weld_label("output-range-label"))
+    , mxOutputRangeEdit(new formula::RefEdit(m_xBuilder->weld_entry("output-range-edit")))
+    , mxOutputRangeButton(new formula::RefButton(m_xBuilder->weld_button("output-range-button")))
+    , mxGroupByColumnsRadio(m_xBuilder->weld_radio_button("groupedby-columns-radio"))
+    , mxGroupByRowsRadio(m_xBuilder->weld_radio_button("groupedby-rows-radio"))
+    , mViewData(pViewData)
+    , mDocument(*pViewData->GetDocument())
+    , mInputRange(ScAddress::INITIALIZE_INVALID)
+    , mAddressDetails(mDocument.GetAddressConvention(), 0, 0)
+    , mOutputAddress(ScAddress::INITIALIZE_INVALID)
+    , mGroupedBy(BY_COLUMN)
+    , mxButtonOk(m_xBuilder->weld_button("ok"))
+    , mpActiveEdit(nullptr)
+    , mCurrentAddress(pViewData->GetCurX(), pViewData->GetCurY(), pViewData->GetTabNo())
+    , mDialogLostFocus(false)
+{
+    mxInputRangeEdit->SetReferences(this, mxInputRangeLabel.get());
+    mxInputRangeButton->SetReferences(this, mxInputRangeEdit.get());
+
+    mxOutputRangeEdit->SetReferences(this, mxOutputRangeLabel.get());
+    mxOutputRangeButton->SetReferences(this, mxOutputRangeEdit.get());
+
+    Init();
+    GetRangeFromSelection();
+}
+
+ScStatisticsInputOutputDialog::~ScStatisticsInputOutputDialog()
+{
+}
+
+void ScStatisticsInputOutputDialog::Init()
+{
+    mxButtonOk->connect_clicked( LINK( this, ScStatisticsInputOutputDialog, OkClicked ) );
+    mxButtonOk->set_sensitive(false);
+
+    Link<formula::RefEdit&,void> aEditLink = LINK( this, ScStatisticsInputOutputDialog, GetEditFocusHandler );
+    mxInputRangeEdit->SetGetFocusHdl( aEditLink );
+    mxOutputRangeEdit->SetGetFocusHdl( aEditLink );
+    Link<formula::RefButton&,void> aButtonLink = LINK( this, ScStatisticsInputOutputDialog, GetButtonFocusHandler );
+    mxInputRangeButton->SetGetFocusHdl( aButtonLink );
+    mxOutputRangeButton->SetGetFocusHdl( aButtonLink );
+
+    aEditLink = LINK( this, ScStatisticsInputOutputDialog, LoseEditFocusHandler );
+    mxInputRangeEdit->SetLoseFocusHdl( aEditLink );
+    mxOutputRangeEdit->SetLoseFocusHdl( aEditLink );
+    aButtonLink = LINK( this, ScStatisticsInputOutputDialog, LoseButtonFocusHandler );
+    mxInputRangeButton->SetLoseFocusHdl( aButtonLink );
+    mxOutputRangeButton->SetLoseFocusHdl( aButtonLink );
+
+    Link<formula::RefEdit&,void> aLink2 = LINK( this, ScStatisticsInputOutputDialog, RefInputModifyHandler);
+    mxInputRangeEdit->SetModifyHdl( aLink2);
+    mxOutputRangeEdit->SetModifyHdl( aLink2);
+
+    mxOutputRangeEdit->GrabFocus();
+
+    mxGroupByColumnsRadio->connect_toggled( LINK( this, ScStatisticsInputOutputDialog, GroupByChanged ) );
+    mxGroupByRowsRadio->connect_toggled( LINK( this, ScStatisticsInputOutputDialog, GroupByChanged ) );
+
+    mxGroupByColumnsRadio->set_active(true);
+    mxGroupByRowsRadio->set_active(false);
+}
+
+void ScStatisticsInputOutputDialog::GetRangeFromSelection()
+{
+    mViewData->GetSimpleArea(mInputRange);
+    OUString aCurrentString(mInputRange.Format(mDocument, ScRefFlags::RANGE_ABS_3D, mAddressDetails));
+    mxInputRangeEdit->SetText(aCurrentString);
+}
+
+void ScStatisticsInputOutputDialog::SetActive()
+{
+    if ( mDialogLostFocus )
+    {
+        mDialogLostFocus = false;
+        if( mpActiveEdit )
+            mpActiveEdit->GrabFocus();
+    }
+    else
+    {
+        m_xDialog->grab_focus();
+    }
+    RefInputDone();
+}
+
+void ScStatisticsInputOutputDialog::SetReference( const ScRange& rReferenceRange, ScDocument& rDocument )
+{
+    if ( mpActiveEdit )
+    {
+        if ( rReferenceRange.aStart != rReferenceRange.aEnd )
+            RefInputStart( mpActiveEdit );
+
+        OUString aReferenceString;
+
+        if (mpActiveEdit == mxInputRangeEdit.get())
+        {
+            mInputRange = rReferenceRange;
+            aReferenceString = mInputRange.Format(rDocument, ScRefFlags::RANGE_ABS_3D, mAddressDetails);
+            mxInputRangeEdit->SetRefString( aReferenceString );
+        }
+        else if (mpActiveEdit == mxOutputRangeEdit.get())
+        {
+            mOutputAddress = rReferenceRange.aStart;
+
+            ScRefFlags nFormat = ( mOutputAddress.Tab() == mCurrentAddress.Tab() ) ?
+                                                             ScRefFlags::ADDR_ABS :
+                                                             ScRefFlags::ADDR_ABS_3D;
+            aReferenceString = mOutputAddress.Format(nFormat, &rDocument, rDocument.GetAddressConvention());
+            mxOutputRangeEdit->SetRefString( aReferenceString );
+        }
+    }
+
+    ValidateDialogInput();
+}
+
+IMPL_LINK_NOARG( ScStatisticsInputOutputDialog, OkClicked, weld::Button&, void )
+{
+    CalculateInputAndWriteToOutput();
+    response(RET_OK);
+}
+
+IMPL_LINK(ScStatisticsInputOutputDialog, GetEditFocusHandler, formula::RefEdit&, rCtrl, void)
+{
+    mpActiveEdit = nullptr;
+
+    if (&rCtrl == mxInputRangeEdit.get())
+        mpActiveEdit = mxInputRangeEdit.get();
+    if (&rCtrl == mxOutputRangeEdit.get())
+        mpActiveEdit = mxOutputRangeEdit.get();
+
+    if (mpActiveEdit)
+        mpActiveEdit->SelectAll();
+}
+
+IMPL_LINK(ScStatisticsInputOutputDialog, GetButtonFocusHandler, formula::RefButton&, rCtrl, void)
+{
+    mpActiveEdit = nullptr;
+
+    if (&rCtrl == mxInputRangeButton.get())
+        mpActiveEdit = mxInputRangeEdit.get();
+    else if (&rCtrl == mxOutputRangeButton.get())
+        mpActiveEdit = mxOutputRangeEdit.get();
+
+    if (mpActiveEdit)
+        mpActiveEdit->SelectAll();
+}
+
+IMPL_LINK_NOARG(ScStatisticsInputOutputDialog, LoseEditFocusHandler, formula::RefEdit&, void)
+{
+    mDialogLostFocus = !m_xDialog->has_toplevel_focus();
+}
+
+IMPL_LINK_NOARG(ScStatisticsInputOutputDialog, LoseButtonFocusHandler, formula::RefButton&, void)
+{
+    mDialogLostFocus = !m_xDialog->has_toplevel_focus();
+}
+
+IMPL_LINK_NOARG( ScStatisticsInputOutputDialog, GroupByChanged, weld::ToggleButton&, void )
+{
+    if (mxGroupByColumnsRadio->get_active())
+        mGroupedBy = BY_COLUMN;
+    else if (mxGroupByRowsRadio->get_active())
+        mGroupedBy = BY_ROW;
+
+    ValidateDialogInput();
+}
+
+IMPL_LINK_NOARG( ScStatisticsInputOutputDialog, RefInputModifyHandler, formula::RefEdit&, void )
+{
+    if ( mpActiveEdit )
+    {
+        if (mpActiveEdit == mxInputRangeEdit.get())
+        {
+            ScRangeList aRangeList;
+            bool bValid = ParseWithNames( aRangeList, mxInputRangeEdit->GetText(), mDocument);
+            const ScRange* pRange = (bValid && aRangeList.size() == 1) ? &aRangeList[0] : nullptr;
+            if (pRange)
+            {
+                mInputRange = *pRange;
+                // Highlight the resulting range.
+                mxInputRangeEdit->StartUpdateData();
+            }
+            else
+            {
+                mInputRange = ScRange( ScAddress::INITIALIZE_INVALID);
+            }
+        }
+        else if (mpActiveEdit == mxOutputRangeEdit.get())
+        {
+            ScRangeList aRangeList;
+            bool bValid = ParseWithNames( aRangeList, mxOutputRangeEdit->GetText(), mDocument);
+            const ScRange* pRange = (bValid && aRangeList.size() == 1) ? &aRangeList[0] : nullptr;
+            if (pRange)
+            {
+                mOutputAddress = pRange->aStart;
+
+                // Crop output range to top left address for Edit field.
+                if (pRange->aStart != pRange->aEnd)
+                {
+                    ScRefFlags nFormat = ( mOutputAddress.Tab() == mCurrentAddress.Tab() ) ?
+                                                                     ScRefFlags::ADDR_ABS :
+                                                                     ScRefFlags::ADDR_ABS_3D;
+                    OUString aReferenceString = mOutputAddress.Format(nFormat, &mDocument, mDocument.GetAddressConvention());
+                    mxOutputRangeEdit->SetRefString( aReferenceString );
+                }
+
+                // Highlight the resulting range.
+                mxOutputRangeEdit->StartUpdateData();
+            }
+            else
+            {
+                mOutputAddress = ScAddress( ScAddress::INITIALIZE_INVALID);
+            }
+        }
+    }
+
+    ValidateDialogInput();
+}
+
+void ScStatisticsInputOutputDialog::CalculateInputAndWriteToOutput()
+{
+    OUString aUndo(ScResId(GetUndoNameId()));
+    ScDocShell* pDocShell = mViewData->GetDocShell();
+    SfxUndoManager* pUndoManager = pDocShell->GetUndoManager();
+    pUndoManager->EnterListAction( aUndo, aUndo, 0, mViewData->GetViewShell()->GetViewShellId() );
+
+    ScRange aOutputRange = ApplyOutput(pDocShell);
+
+    pUndoManager->LeaveListAction();
+    pDocShell->PostPaint( aOutputRange, PaintPartFlags::Grid );
+}
+
+bool ScStatisticsInputOutputDialog::InputRangesValid()
+{
+    return mInputRange.IsValid() && mOutputAddress.IsValid();
+}
+
+void ScStatisticsInputOutputDialog::ValidateDialogInput()
+{
+    // Enable OK button if all inputs are ok.
+    mxButtonOk->set_sensitive(InputRangesValid());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/StatisticsTwoVariableDialog.cxx b/sc/source/ui/StatisticsDialogs/StatisticsTwoVariableDialog.cxx
new file mode 100644
index 000000000..ab2b3c7fb
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/StatisticsTwoVariableDialog.cxx
@@ -0,0 +1,340 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <svl/undo.hxx>
+
+#include <rangelst.hxx>
+#include <docsh.hxx>
+#include <document.hxx>
+#include <scresid.hxx>
+#include <tabvwsh.hxx>
+
+#include <StatisticsTwoVariableDialog.hxx>
+
+ScStatisticsTwoVariableDialog::ScStatisticsTwoVariableDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData, const OUString& rUIXMLDescription, const OString& rID)
+    : ScAnyRefDlgController(pSfxBindings, pChildWindow, pParent, rUIXMLDescription, rID)
+    , mxVariable1RangeLabel(m_xBuilder->weld_label("variable1-range-label"))
+    , mxVariable1RangeEdit(new formula::RefEdit(m_xBuilder->weld_entry("variable1-range-edit")))
+    , mxVariable1RangeButton(new formula::RefButton(m_xBuilder->weld_button("variable1-range-button")))
+    , mxVariable2RangeLabel(m_xBuilder->weld_label("variable2-range-label"))
+    , mxVariable2RangeEdit(new formula::RefEdit(m_xBuilder->weld_entry("variable2-range-edit")))
+    , mxVariable2RangeButton(new formula::RefButton(m_xBuilder->weld_button("variable2-range-button")))
+    , mxOutputRangeLabel(m_xBuilder->weld_label("output-range-label"))
+    , mxOutputRangeEdit(new formula::RefEdit(m_xBuilder->weld_entry("output-range-edit")))
+    , mxOutputRangeButton(new formula::RefButton(m_xBuilder->weld_button("output-range-button")))
+    , mViewData(pViewData)
+    , mDocument(*pViewData->GetDocument())
+    , mVariable1Range(ScAddress::INITIALIZE_INVALID)
+    , mVariable2Range(ScAddress::INITIALIZE_INVALID)
+    , mAddressDetails(mDocument.GetAddressConvention(), 0, 0 )
+    , mOutputAddress(ScAddress::INITIALIZE_INVALID)
+    , mGroupedBy(BY_COLUMN)
+    , mxButtonOk(m_xBuilder->weld_button("ok"))
+    , mxGroupByColumnsRadio(m_xBuilder->weld_radio_button("groupedby-columns-radio"))
+    , mxGroupByRowsRadio(m_xBuilder->weld_radio_button("groupedby-rows-radio"))
+    , mpActiveEdit(nullptr)
+    , mCurrentAddress(pViewData->GetCurX(), pViewData->GetCurY(), pViewData->GetTabNo() )
+    , mDialogLostFocus(false)
+{
+    mxVariable1RangeEdit->SetReferences(this, mxVariable1RangeLabel.get());
+    mxVariable1RangeButton->SetReferences(this, mxVariable1RangeEdit.get());
+
+    mxVariable2RangeEdit->SetReferences(this, mxVariable2RangeLabel.get());
+    mxVariable2RangeButton->SetReferences(this, mxVariable2RangeEdit.get());
+
+    mxOutputRangeEdit->SetReferences(this, mxOutputRangeLabel.get());
+    mxOutputRangeButton->SetReferences(this, mxOutputRangeEdit.get());
+
+    Init();
+    GetRangeFromSelection();
+}
+
+ScStatisticsTwoVariableDialog::~ScStatisticsTwoVariableDialog()
+{
+}
+
+void ScStatisticsTwoVariableDialog::Init()
+{
+    mxButtonOk->connect_clicked( LINK( this, ScStatisticsTwoVariableDialog, OkClicked ) );
+    mxButtonOk->set_sensitive(false);
+
+    Link<formula::RefEdit&,void> aEditLink = LINK( this, ScStatisticsTwoVariableDialog, GetEditFocusHandler );
+    mxVariable1RangeEdit->SetGetFocusHdl( aEditLink );
+    mxVariable2RangeEdit->SetGetFocusHdl( aEditLink );
+    mxOutputRangeEdit->SetGetFocusHdl( aEditLink );
+
+    Link<formula::RefButton&,void> aButtonLink = LINK( this, ScStatisticsTwoVariableDialog, GetButtonFocusHandler );
+    mxVariable1RangeButton->SetGetFocusHdl( aButtonLink );
+    mxVariable2RangeButton->SetGetFocusHdl( aButtonLink );
+    mxOutputRangeButton->SetGetFocusHdl( aButtonLink );
+
+    aEditLink = LINK( this, ScStatisticsTwoVariableDialog, LoseEditFocusHandler );
+    mxVariable1RangeEdit->SetLoseFocusHdl( aEditLink );
+    mxVariable2RangeEdit->SetLoseFocusHdl( aEditLink );
+    mxOutputRangeEdit->SetLoseFocusHdl( aEditLink );
+
+    aButtonLink = LINK( this, ScStatisticsTwoVariableDialog, LoseButtonFocusHandler );
+    mxVariable1RangeButton->SetLoseFocusHdl( aButtonLink );
+    mxVariable2RangeButton->SetLoseFocusHdl( aButtonLink );
+    mxOutputRangeButton->SetLoseFocusHdl( aButtonLink );
+
+    Link<formula::RefEdit&,void> aLink2 = LINK( this, ScStatisticsTwoVariableDialog, RefInputModifyHandler);
+    mxVariable1RangeEdit->SetModifyHdl( aLink2);
+    mxVariable2RangeEdit->SetModifyHdl( aLink2);
+    mxOutputRangeEdit->SetModifyHdl( aLink2);
+
+    mxOutputRangeEdit->GrabFocus();
+
+    mxGroupByColumnsRadio->connect_toggled( LINK( this, ScStatisticsTwoVariableDialog, GroupByChanged ) );
+    mxGroupByRowsRadio->connect_toggled( LINK( this, ScStatisticsTwoVariableDialog, GroupByChanged ) );
+
+    mxGroupByColumnsRadio->set_active(true);
+    mxGroupByRowsRadio->set_active(false);
+}
+
+void ScStatisticsTwoVariableDialog::GetRangeFromSelection()
+{
+    OUString aCurrentString;
+
+    ScRange aCurrentRange;
+    mViewData->GetSimpleArea(aCurrentRange);
+
+    if (aCurrentRange.aEnd.Col() - aCurrentRange.aStart.Col() == 1)
+    {
+        mVariable1Range = aCurrentRange;
+        mVariable1Range.aEnd.SetCol(mVariable1Range.aStart.Col());
+        aCurrentString = mVariable1Range.Format(mDocument, ScRefFlags::RANGE_ABS_3D, mAddressDetails);
+        mxVariable1RangeEdit->SetText(aCurrentString);
+
+        mVariable2Range = aCurrentRange;
+        mVariable2Range.aStart.SetCol(mVariable2Range.aEnd.Col());
+        aCurrentString = mVariable2Range.Format(mDocument, ScRefFlags::RANGE_ABS_3D, mAddressDetails);
+        mxVariable2RangeEdit->SetText(aCurrentString);
+    }
+    else
+    {
+        mVariable1Range = aCurrentRange;
+        aCurrentString = mVariable1Range.Format(mDocument, ScRefFlags::RANGE_ABS_3D, mAddressDetails);
+        mxVariable1RangeEdit->SetText(aCurrentString);
+    }
+}
+
+void ScStatisticsTwoVariableDialog::SetActive()
+{
+    if ( mDialogLostFocus )
+    {
+        mDialogLostFocus = false;
+        if( mpActiveEdit )
+            mpActiveEdit->GrabFocus();
+    }
+    else
+    {
+        m_xDialog->grab_focus();
+    }
+    RefInputDone();
+}
+
+void ScStatisticsTwoVariableDialog::SetReference( const ScRange& rReferenceRange, ScDocument& rDocument )
+{
+    if ( mpActiveEdit != nullptr )
+    {
+        if ( rReferenceRange.aStart != rReferenceRange.aEnd )
+            RefInputStart( mpActiveEdit );
+
+        OUString aReferenceString;
+
+        if ( mpActiveEdit == mxVariable1RangeEdit.get() )
+        {
+            mVariable1Range = rReferenceRange;
+            aReferenceString = mVariable1Range.Format(rDocument, ScRefFlags::RANGE_ABS_3D, mAddressDetails);
+            mxVariable1RangeEdit->SetRefString(aReferenceString);
+        }
+        else if ( mpActiveEdit == mxVariable2RangeEdit.get() )
+        {
+            mVariable2Range = rReferenceRange;
+            aReferenceString = mVariable2Range.Format(rDocument, ScRefFlags::RANGE_ABS_3D, mAddressDetails);
+            mxVariable2RangeEdit->SetRefString(aReferenceString);
+        }
+        else if ( mpActiveEdit == mxOutputRangeEdit.get() )
+        {
+            mOutputAddress = rReferenceRange.aStart;
+
+            ScRefFlags nFormat = ( mOutputAddress.Tab() == mCurrentAddress.Tab() ) ?
+                                                             ScRefFlags::ADDR_ABS :
+                                                             ScRefFlags::ADDR_ABS_3D;
+            aReferenceString = mOutputAddress.Format(nFormat, &rDocument, rDocument.GetAddressConvention());
+            mxOutputRangeEdit->SetRefString( aReferenceString );
+        }
+    }
+
+    ValidateDialogInput();
+}
+
+IMPL_LINK_NOARG( ScStatisticsTwoVariableDialog, OkClicked, weld::Button&, void )
+{
+    CalculateInputAndWriteToOutput();
+    response(RET_OK);
+}
+
+IMPL_LINK(ScStatisticsTwoVariableDialog, GetEditFocusHandler, formula::RefEdit&, rCtrl, void)
+{
+    mpActiveEdit = nullptr;
+    if (&rCtrl == mxVariable1RangeEdit.get())
+    {
+        mpActiveEdit = mxVariable1RangeEdit.get();
+    }
+    else if (&rCtrl == mxVariable2RangeEdit.get())
+    {
+        mpActiveEdit = mxVariable2RangeEdit.get();
+    }
+    else if (&rCtrl == mxOutputRangeEdit.get())
+    {
+        mpActiveEdit = mxOutputRangeEdit.get();
+    }
+
+    if( mpActiveEdit )
+        mpActiveEdit->SelectAll();
+}
+
+IMPL_LINK( ScStatisticsTwoVariableDialog, GetButtonFocusHandler, formula::RefButton&, rCtrl, void )
+{
+    mpActiveEdit = nullptr;
+    if (&rCtrl == mxVariable1RangeButton.get())
+    {
+        mpActiveEdit = mxVariable1RangeEdit.get();
+    }
+    else if (&rCtrl == mxVariable2RangeButton.get())
+    {
+        mpActiveEdit = mxVariable2RangeEdit.get();
+    }
+    else if (&rCtrl == mxOutputRangeButton.get())
+    {
+        mpActiveEdit = mxOutputRangeEdit.get();
+    }
+
+    if( mpActiveEdit )
+        mpActiveEdit->SelectAll();
+}
+
+IMPL_LINK_NOARG( ScStatisticsTwoVariableDialog, LoseEditFocusHandler, formula::RefEdit&, void )
+{
+    mDialogLostFocus = !m_xDialog->has_toplevel_focus();
+}
+
+IMPL_LINK_NOARG( ScStatisticsTwoVariableDialog, LoseButtonFocusHandler, formula::RefButton&, void )
+{
+    mDialogLostFocus = !m_xDialog->has_toplevel_focus();
+}
+
+IMPL_LINK_NOARG(ScStatisticsTwoVariableDialog, GroupByChanged, weld::ToggleButton&, void)
+{
+    if (mxGroupByColumnsRadio->get_active())
+        mGroupedBy = BY_COLUMN;
+    else if (mxGroupByRowsRadio->get_active())
+        mGroupedBy = BY_ROW;
+
+    ValidateDialogInput();
+}
+
+IMPL_LINK_NOARG( ScStatisticsTwoVariableDialog, RefInputModifyHandler, formula::RefEdit&, void )
+{
+    if ( mpActiveEdit )
+    {
+        if (mpActiveEdit == mxVariable1RangeEdit.get())
+        {
+            ScRangeList aRangeList;
+            bool bValid = ParseWithNames( aRangeList, mxVariable1RangeEdit->GetText(), mDocument);
+            const ScRange* pRange = (bValid && aRangeList.size() == 1) ? &aRangeList[0] : nullptr;
+            if (pRange)
+            {
+                mVariable1Range = *pRange;
+                // Highlight the resulting range.
+                mxVariable1RangeEdit->StartUpdateData();
+            }
+            else
+            {
+                mVariable1Range = ScRange( ScAddress::INITIALIZE_INVALID);
+            }
+        }
+        else if ( mpActiveEdit == mxVariable2RangeEdit.get() )
+        {
+            ScRangeList aRangeList;
+            bool bValid = ParseWithNames( aRangeList, mxVariable2RangeEdit->GetText(), mDocument);
+            const ScRange* pRange = (bValid && aRangeList.size() == 1) ? &aRangeList[0] : nullptr;
+            if (pRange)
+            {
+                mVariable2Range = *pRange;
+                // Highlight the resulting range.
+                mxVariable2RangeEdit->StartUpdateData();
+            }
+            else
+            {
+                mVariable2Range = ScRange( ScAddress::INITIALIZE_INVALID);
+            }
+        }
+        else if ( mpActiveEdit == mxOutputRangeEdit.get() )
+        {
+            ScRangeList aRangeList;
+            bool bValid = ParseWithNames( aRangeList, mxOutputRangeEdit->GetText(), mDocument);
+            const ScRange* pRange = (bValid && aRangeList.size() == 1) ? &aRangeList[0] : nullptr;
+            if (pRange)
+            {
+                mOutputAddress = pRange->aStart;
+
+                // Crop output range to top left address for Edit field.
+                if (pRange->aStart != pRange->aEnd)
+                {
+                    ScRefFlags nFormat = ( mOutputAddress.Tab() == mCurrentAddress.Tab() ) ?
+                                                                     ScRefFlags::ADDR_ABS :
+                                                                     ScRefFlags::ADDR_ABS_3D;
+                    OUString aReferenceString = mOutputAddress.Format(nFormat, &mDocument, mDocument.GetAddressConvention());
+                    mxOutputRangeEdit->SetRefString( aReferenceString );
+                }
+
+                // Highlight the resulting range.
+                mxOutputRangeEdit->StartUpdateData();
+            }
+            else
+            {
+                mOutputAddress = ScAddress( ScAddress::INITIALIZE_INVALID);
+            }
+        }
+    }
+
+    ValidateDialogInput();
+}
+
+void ScStatisticsTwoVariableDialog::CalculateInputAndWriteToOutput()
+{
+    OUString aUndo(ScResId(GetUndoNameId()));
+    ScDocShell* pDocShell = mViewData->GetDocShell();
+    SfxUndoManager* pUndoManager = pDocShell->GetUndoManager();
+    pUndoManager->EnterListAction( aUndo, aUndo, 0, mViewData->GetViewShell()->GetViewShellId() );
+
+    ScRange aOutputRange = ApplyOutput(pDocShell);
+
+    pUndoManager->LeaveListAction();
+    pDocShell->PostPaint( aOutputRange, PaintPartFlags::Grid );
+}
+
+bool ScStatisticsTwoVariableDialog::InputRangesValid()
+{
+    return mVariable1Range.IsValid() && mVariable2Range.IsValid() && mOutputAddress.IsValid();
+}
+
+void ScStatisticsTwoVariableDialog::ValidateDialogInput()
+{
+    // Enable OK button if all inputs are ok.
+    mxButtonOk->set_sensitive(InputRangesValid());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/TTestDialog.cxx b/sc/source/ui/StatisticsDialogs/TTestDialog.cxx
new file mode 100644
index 000000000..80cb6608e
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/TTestDialog.cxx
@@ -0,0 +1,183 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <memory>
+
+#include <reffact.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <TTestDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+ScTTestDialog::ScTTestDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData ) :
+    ScStatisticsTwoVariableDialog(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/ttestdialog.ui", "TTestDialog")
+{
+    m_xDialog->set_title(ScResId(STR_TTEST));
+}
+
+ScTTestDialog::~ScTTestDialog()
+{}
+
+void ScTTestDialog::Close()
+{
+    DoClose( ScTTestDialogWrapper::GetChildWindowId() );
+}
+
+const char* ScTTestDialog::GetUndoNameId()
+{
+    return STR_TTEST_UNDO_NAME;
+}
+
+ScRange ScTTestDialog::ApplyOutput(ScDocShell* pDocShell)
+{
+    AddressWalkerWriter aOutput(mOutputAddress, pDocShell, &mDocument,
+            formula::FormulaGrammar::mergeToGrammar( formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+
+    std::unique_ptr<DataRangeIterator> pVariable1Iterator;
+    if (mGroupedBy == BY_COLUMN)
+        pVariable1Iterator.reset(new DataRangeByColumnIterator(mVariable1Range));
+    else
+        pVariable1Iterator.reset(new DataRangeByRowIterator(mVariable1Range));
+
+    std::unique_ptr<DataRangeIterator> pVariable2Iterator;
+    if (mGroupedBy == BY_COLUMN)
+        pVariable2Iterator.reset(new DataRangeByColumnIterator(mVariable2Range));
+    else
+        pVariable2Iterator.reset(new DataRangeByRowIterator(mVariable2Range));
+
+    aTemplate.autoReplaceRange("%VARIABLE1_RANGE%", pVariable1Iterator->get());
+    aTemplate.autoReplaceRange("%VARIABLE2_RANGE%", pVariable2Iterator->get());
+
+    aOutput.writeBoldString(ScResId(STR_TTEST_UNDO_NAME));
+    aOutput.newLine();
+
+    // Alpha
+    aOutput.writeString(ScResId(STR_LABEL_ALPHA));
+    aOutput.nextColumn();
+    aOutput.writeValue(0.05);
+    aTemplate.autoReplaceAddress("%ALPHA%", aOutput.current());
+    aOutput.newLine();
+
+    // Hypothesized mean difference
+    aOutput.writeString(ScResId(STR_HYPOTHESIZED_MEAN_DIFFERENCE_LABEL));
+    aOutput.nextColumn();
+    aOutput.writeValue(0);
+    aTemplate.autoReplaceAddress("%HYPOTHESIZED_MEAN_DIFFERENCE%", aOutput.current());
+    aOutput.newLine();
+
+    aOutput.nextColumn();
+    aOutput.writeBoldString(ScResId(STR_VARIABLE_1_LABEL));
+    aOutput.nextColumn();
+    aOutput.writeBoldString(ScResId(STR_VARIABLE_2_LABEL));
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STRID_CALC_MEAN));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=AVERAGE(%VARIABLE1_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=AVERAGE(%VARIABLE2_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    aOutput.writeString(ScResId(STRID_CALC_VARIANCE));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=VAR(%VARIABLE1_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=VAR(%VARIABLE2_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // Observations
+    aOutput.writeString(ScResId(STR_OBSERVATIONS_LABEL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=COUNT(%VARIABLE1_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=COUNT(%VARIABLE2_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // Pearson Correlation
+    aOutput.writeString(ScResId(STR_TTEST_PEARSON_CORRELATION));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=CORREL(%VARIABLE1_RANGE%;%VARIABLE2_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // Observed mean difference
+    aOutput.writeString(ScResId(STR_OBSERVED_MEAN_DIFFERENCE_LABEL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=AVERAGE(IF(ISODD(IF(ISNUMBER(%VARIABLE1_RANGE%); 1; 0) * IF(ISNUMBER(%VARIABLE2_RANGE%); 1; 0)); %VARIABLE1_RANGE% - %VARIABLE2_RANGE%; \"NA\"))");
+    aOutput.writeMatrixFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%OBSERVED_MEAN_DIFFERENCE%", aOutput.current());
+    aOutput.newLine();
+
+    // Variance of the Differences
+    aOutput.writeString(ScResId(STR_TTEST_VARIANCE_OF_THE_DIFFERENCES));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=VAR(IF(ISODD(IF(ISNUMBER(%VARIABLE1_RANGE%); 1; 0) * IF(ISNUMBER(%VARIABLE2_RANGE%); 1; 0)); %VARIABLE1_RANGE% - %VARIABLE2_RANGE%; \"NA\"))");
+    aOutput.writeMatrixFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%VARIANCE_OF_DIFFERENCES%", aOutput.current());
+    aOutput.newLine();
+
+    // df
+    aOutput.writeString(ScResId(STR_ANOVA_LABEL_DF));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=SUM(IF(ISNUMBER(%VARIABLE1_RANGE%); 1; 0) * IF(ISNUMBER(%VARIABLE2_RANGE%); 1; 0)) - 1");
+    aOutput.writeMatrixFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%DEGREE_OF_FREEDOM%", aOutput.current());
+    aOutput.newLine();
+
+    // t stat
+    aOutput.writeString(ScResId(STR_TTEST_T_STAT));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=(%OBSERVED_MEAN_DIFFERENCE% - %HYPOTHESIZED_MEAN_DIFFERENCE%) / (%VARIANCE_OF_DIFFERENCES% / ( %DEGREE_OF_FREEDOM% + 1)) ^ 0.5");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%T_STAT%", aOutput.current());
+    aOutput.newLine();
+
+    // P one-tail
+    aOutput.writeString(ScResId(STR_TTEST_P_ONE_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=TDIST(ABS(%T_STAT%); %DEGREE_OF_FREEDOM%; 1)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // T critical one-tail
+    aOutput.writeString(ScResId(STR_TTEST_T_CRITICAL_ONE_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=TINV(2*%ALPHA%; %DEGREE_OF_FREEDOM%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // P two-tail
+    aOutput.writeString(ScResId(STR_TTEST_P_TWO_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=TDIST(ABS(%T_STAT%); %DEGREE_OF_FREEDOM%; 2)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // T critical two-tail
+    aOutput.writeString(ScResId(STR_TTEST_T_CRITICAL_TWO_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=TINV(%ALPHA%; %DEGREE_OF_FREEDOM%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+
+    return ScRange(aOutput.mMinimumAddress, aOutput.mMaximumAddress);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/TableFillingAndNavigationTools.cxx b/sc/source/ui/StatisticsDialogs/TableFillingAndNavigationTools.cxx
new file mode 100644
index 000000000..4ac9ee4d2
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/TableFillingAndNavigationTools.cxx
@@ -0,0 +1,389 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <memory>
+
+#include <editeng/editobj.hxx>
+#include <editeng/wghtitem.hxx>
+#include <editeng/eeitem.hxx>
+
+#include <editutil.hxx>
+
+#include <TableFillingAndNavigationTools.hxx>
+#include <formulacell.hxx>
+#include <docfunc.hxx>
+#include <docsh.hxx>
+
+FormulaTemplate::FormulaTemplate(ScDocument* pDoc)
+    : mpDoc(pDoc)
+    , mbUse3D(true)
+{}
+
+void FormulaTemplate::setTemplate(const OUString& aTemplate)
+{
+    mTemplate = aTemplate;
+}
+
+void FormulaTemplate::setTemplate(const char* aTemplate)
+{
+    mTemplate = OUString::createFromAscii(aTemplate);
+}
+
+const OUString& FormulaTemplate::getTemplate()
+{
+    for (const auto& [rVariable, rRange] : mRangeReplacementMap)
+    {
+        applyRange(rVariable, rRange, mbUse3D);
+    }
+    for (const auto& [rVariable, rAddress] : mAddressReplacementMap)
+    {
+        applyAddress(rVariable, rAddress, mbUse3D);
+    }
+    return mTemplate;
+}
+
+void FormulaTemplate::autoReplaceRange(const OUString& aVariable, const ScRange& rRange)
+{
+    mRangeReplacementMap[aVariable] = rRange;
+}
+
+void FormulaTemplate::autoReplaceAddress(const OUString& aVariable, ScAddress const & aAddress)
+{
+
+    mAddressReplacementMap[aVariable] = aAddress;
+}
+
+void FormulaTemplate::applyRange(const OUString& aVariable, const ScRange& aRange, bool b3D)
+{
+    ScRefFlags nFlag = b3D ? ScRefFlags::RANGE_ABS_3D : ScRefFlags::RANGE_ABS;
+    OUString aString = aRange.Format(*mpDoc, nFlag, mpDoc->GetAddressConvention());
+    mTemplate = mTemplate.replaceAll(aVariable, aString);
+}
+
+void FormulaTemplate::applyRangeList(const OUString& aVariable, const ScRangeList& aRangeList, sal_Unicode cDelimiter)
+{
+    OUString aString;
+    aRangeList.Format(aString, ScRefFlags::RANGE_ABS_3D, *mpDoc, mpDoc->GetAddressConvention(), cDelimiter);
+    mTemplate = mTemplate.replaceAll(aVariable, aString);
+}
+
+void FormulaTemplate::applyAddress(const OUString& aVariable, const ScAddress& aAddress, bool b3D)
+{
+    ScRefFlags nFlag = b3D ? ScRefFlags::ADDR_ABS_3D : ScRefFlags::ADDR_ABS;
+    OUString aString = aAddress.Format(nFlag, mpDoc, mpDoc->GetAddressConvention());
+    mTemplate = mTemplate.replaceAll(aVariable, aString);
+}
+
+void FormulaTemplate::applyString(const OUString& aVariable, const OUString& aValue)
+{
+    mTemplate = mTemplate.replaceAll(aVariable, aValue);
+}
+
+void FormulaTemplate::applyNumber(const OUString& aVariable, sal_Int32 aValue)
+{
+    mTemplate = mTemplate.replaceAll(aVariable, OUString::number(aValue));
+}
+
+AddressWalker::AddressWalker(const ScAddress& aInitialAddress) :
+    mCurrentAddress(aInitialAddress),
+    mMinimumAddress(aInitialAddress),
+    mMaximumAddress(aInitialAddress)
+{
+    mAddressStack.push_back(mCurrentAddress);
+}
+
+void AddressWalker::resetColumn()
+{
+    mCurrentAddress.SetCol(mAddressStack.back().Col());
+}
+
+void AddressWalker::resetRow()
+{
+    mCurrentAddress.SetRow(mAddressStack.back().Row());
+}
+
+void AddressWalker::reset()
+{
+    mCurrentAddress = mAddressStack.back();
+}
+
+void AddressWalker::newLine()
+{
+    resetColumn();
+    nextRow();
+}
+
+ScAddress AddressWalker::current(SCCOL aRelCol, SCROW aRelRow, SCTAB aRelTab)
+{
+    return ScAddress(
+            mCurrentAddress.Col() + aRelCol,
+            mCurrentAddress.Row() + aRelRow,
+            mCurrentAddress.Tab() + aRelTab);
+}
+
+void AddressWalker::nextColumn()
+{
+    mCurrentAddress.IncCol();
+
+    if(mMaximumAddress.Col() < mCurrentAddress.Col())
+        mMaximumAddress.SetCol(mCurrentAddress.Col());
+}
+
+void AddressWalker::nextRow()
+{
+    mCurrentAddress.IncRow();
+    if(mMaximumAddress.Row() < mCurrentAddress.Row())
+        mMaximumAddress.SetRow(mCurrentAddress.Row());
+}
+
+void AddressWalker::push(SCCOL aRelativeCol, SCROW aRelativeRow, SCTAB aRelativeTab)
+{
+    mCurrentAddress = current(aRelativeCol, aRelativeRow, aRelativeTab);
+    mAddressStack.push_back(mCurrentAddress);
+}
+
+AddressWalkerWriter::AddressWalkerWriter(const ScAddress& aInitialAddress, ScDocShell* pDocShell, ScDocument* pDocument,
+        formula::FormulaGrammar::Grammar eGrammar ) :
+    AddressWalker(aInitialAddress),
+    mpDocShell(pDocShell),
+    mpDocument(pDocument),
+    meGrammar(eGrammar)
+{}
+
+void AddressWalkerWriter::writeFormula(const OUString& aFormula)
+{
+    mpDocShell->GetDocFunc().SetFormulaCell(mCurrentAddress,
+            new ScFormulaCell(mpDocument, mCurrentAddress, aFormula, meGrammar), true);
+}
+
+void AddressWalkerWriter::writeFormulas(const std::vector<OUString>& rFormulas)
+{
+    size_t nLength = rFormulas.size();
+    if (!nLength)
+        return;
+
+    const size_t nMaxLen = MAXROW - mCurrentAddress.Row() + 1;
+    // If not done already, trim the length to fit.
+    if (nLength > nMaxLen)
+        nLength = nMaxLen;
+
+    std::vector<ScFormulaCell*> aFormulaCells(nLength);
+    ScAddress aAddr(mCurrentAddress);
+    for (size_t nIdx = 0; nIdx < nLength; ++nIdx)
+    {
+        aFormulaCells[nIdx] = new ScFormulaCell(mpDocument, aAddr, rFormulas[nIdx], meGrammar);
+        aAddr.IncRow(1);
+    }
+
+    mpDocShell->GetDocFunc().SetFormulaCells(mCurrentAddress, aFormulaCells, true);
+}
+
+void AddressWalkerWriter::writeMatrixFormula(const OUString& aFormula, SCCOL nCols, SCROW nRows)
+{
+    ScRange aRange;
+    aRange.aStart = mCurrentAddress;
+    aRange.aEnd = mCurrentAddress;
+    if (nCols > 1)
+        aRange.aEnd.IncCol(nCols - 1);
+    if (nRows > 1)
+        aRange.aEnd.IncRow(nRows - 1);
+    mpDocShell->GetDocFunc().EnterMatrix(aRange, nullptr, nullptr, aFormula, false, false, OUString(), meGrammar );
+}
+
+void AddressWalkerWriter::writeString(const OUString& aString)
+{
+    mpDocShell->GetDocFunc().SetStringCell(mCurrentAddress, aString, true);
+}
+
+void AddressWalkerWriter::writeString(const char* aCharArray)
+{
+    writeString(OUString::createFromAscii(aCharArray));
+}
+
+void AddressWalkerWriter::writeBoldString(const OUString& aString)
+{
+    ScFieldEditEngine& rEngine = mpDocument->GetEditEngine();
+    rEngine.SetTextCurrentDefaults(aString);
+    SfxItemSet aItemSet = rEngine.GetEmptyItemSet();
+    SvxWeightItem aWeight(WEIGHT_BOLD, EE_CHAR_WEIGHT);
+    aItemSet.Put(aWeight);
+    rEngine.QuickSetAttribs(aItemSet, ESelection(0, 0, 0, aString.getLength()) );
+    std::unique_ptr<EditTextObject> pEditText(rEngine.CreateTextObject());
+    mpDocShell->GetDocFunc().SetEditCell(mCurrentAddress, *pEditText, true);
+}
+
+void AddressWalkerWriter::writeValue(double aValue)
+{
+    mpDocShell->GetDocFunc().SetValueCell(mCurrentAddress, aValue, true);
+}
+
+// DataCellIterator
+
+DataCellIterator::DataCellIterator(const ScRange& aInputRange, bool aByColumn)
+    : mInputRange(aInputRange)
+    , mByColumn(aByColumn)
+    , mCol(0)
+    , mRow(0)
+{
+    if(aByColumn)
+        mCol = aInputRange.aStart.Col();
+    else
+        mRow = aInputRange.aStart.Row();
+}
+
+DataCellIterator::~DataCellIterator()
+{}
+
+bool DataCellIterator::hasNext() const
+{
+    if(mByColumn)
+        return mCol <= mInputRange.aEnd.Col();
+    else
+        return mRow <= mInputRange.aEnd.Row();
+}
+
+void DataCellIterator::next()
+{
+    if(mByColumn)
+        mCol++;
+    else
+        mRow++;
+}
+
+ScAddress DataCellIterator::get()
+{
+    return getRelative(0);
+}
+
+ScAddress DataCellIterator::getRelative(int aDelta)
+{
+    if(mByColumn)
+    {
+        SCCOL aNewColumn = mCol + aDelta;
+        if(aNewColumn < mInputRange.aStart.Col() || aNewColumn > mInputRange.aEnd.Col())
+        {
+            ScAddress aResult;
+            aResult.SetInvalid();
+            return aResult;
+        }
+        return ScAddress(aNewColumn, mInputRange.aStart.Row(), mInputRange.aStart.Tab());
+    }
+    else
+    {
+        SCROW aNewRow = mRow + aDelta;
+        if(aNewRow < mInputRange.aStart.Row() || aNewRow > mInputRange.aEnd.Row())
+        {
+            ScAddress aResult;
+            aResult.SetInvalid();
+            return aResult;
+        }
+        return ScAddress(mInputRange.aStart.Col(), aNewRow, mInputRange.aStart.Tab());
+    }
+}
+
+// DataRangeIterator
+
+DataRangeIterator::DataRangeIterator(const ScRange& aInputRange) :
+    mInputRange(aInputRange),
+    mIndex(0)
+{}
+
+DataRangeIterator::~DataRangeIterator()
+{}
+
+sal_Int32 DataRangeIterator::index()
+{
+    return mIndex;
+}
+
+// DataRangeByColumnIterator
+
+DataRangeByColumnIterator::DataRangeByColumnIterator(const ScRange& aInputRange)
+    : DataRangeIterator(aInputRange)
+    , mCol(aInputRange.aStart.Col())
+{}
+
+bool DataRangeByColumnIterator::hasNext()
+{
+    return mCol <= mInputRange.aEnd.Col();
+}
+
+void DataRangeByColumnIterator::next()
+{
+    mCol++;
+    mIndex++;
+}
+
+ScRange DataRangeByColumnIterator::get()
+{
+    return ScRange(
+        ScAddress(mCol, mInputRange.aStart.Row(), mInputRange.aStart.Tab()),
+        ScAddress(mCol, mInputRange.aEnd.Row(),   mInputRange.aEnd.Tab())
+    );
+}
+
+size_t DataRangeByColumnIterator::size()
+{
+    return mInputRange.aEnd.Row() - mInputRange.aStart.Row() + 1;
+}
+
+void DataRangeByColumnIterator::reset()
+{
+    mCol = mInputRange.aStart.Col();
+}
+
+DataCellIterator DataRangeByColumnIterator::iterateCells()
+{
+    return DataCellIterator(get(), false);
+}
+
+// DataRangeByRowIterator
+
+DataRangeByRowIterator::DataRangeByRowIterator(const ScRange& aInputRange)
+    : DataRangeIterator(aInputRange)
+    , mRow(aInputRange.aStart.Row())
+{}
+
+bool DataRangeByRowIterator::hasNext()
+{
+    return mRow <= mInputRange.aEnd.Row();
+}
+
+void DataRangeByRowIterator::next()
+{
+    mRow++;
+    mIndex++;
+}
+
+ScRange DataRangeByRowIterator::get()
+{
+    return ScRange(
+        ScAddress(mInputRange.aStart.Col(), mRow, mInputRange.aStart.Tab()),
+        ScAddress(mInputRange.aEnd.Col(),   mRow, mInputRange.aEnd.Tab())
+    );
+}
+
+size_t DataRangeByRowIterator::size()
+{
+    return mInputRange.aEnd.Col() - mInputRange.aStart.Col() + 1;
+}
+
+void DataRangeByRowIterator::reset()
+{
+    mRow = mInputRange.aStart.Row();
+}
+
+DataCellIterator DataRangeByRowIterator::iterateCells()
+{
+    return DataCellIterator(get(), true);
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sc/source/ui/StatisticsDialogs/ZTestDialog.cxx b/sc/source/ui/StatisticsDialogs/ZTestDialog.cxx
new file mode 100644
index 000000000..6eb11ac57
--- /dev/null
+++ b/sc/source/ui/StatisticsDialogs/ZTestDialog.cxx
@@ -0,0 +1,167 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#include <memory>
+
+#include <reffact.hxx>
+#include <TableFillingAndNavigationTools.hxx>
+#include <ZTestDialog.hxx>
+#include <scresid.hxx>
+#include <strings.hrc>
+
+ScZTestDialog::ScZTestDialog(
+                    SfxBindings* pSfxBindings, SfxChildWindow* pChildWindow,
+                    weld::Window* pParent, ScViewData* pViewData ) :
+    ScStatisticsTwoVariableDialog(
+            pSfxBindings, pChildWindow, pParent, pViewData,
+            "modules/scalc/ui/ztestdialog.ui", "ZTestDialog")
+{
+    m_xDialog->set_title(ScResId(STR_ZTEST));
+}
+
+ScZTestDialog::~ScZTestDialog()
+{}
+
+void ScZTestDialog::Close()
+{
+    DoClose( ScZTestDialogWrapper::GetChildWindowId() );
+}
+
+const char* ScZTestDialog::GetUndoNameId()
+{
+    return STR_ZTEST_UNDO_NAME;
+}
+
+ScRange ScZTestDialog::ApplyOutput(ScDocShell* pDocShell)
+{
+    AddressWalkerWriter aOutput(mOutputAddress, pDocShell, &mDocument,
+            formula::FormulaGrammar::mergeToGrammar( formula::FormulaGrammar::GRAM_ENGLISH, mAddressDetails.eConv));
+    FormulaTemplate aTemplate(&mDocument);
+
+    std::unique_ptr<DataRangeIterator> pVariable1Iterator;
+    if (mGroupedBy == BY_COLUMN)
+        pVariable1Iterator.reset(new DataRangeByColumnIterator(mVariable1Range));
+    else
+        pVariable1Iterator.reset(new DataRangeByRowIterator(mVariable1Range));
+
+    std::unique_ptr<DataRangeIterator> pVariable2Iterator;
+    if (mGroupedBy == BY_COLUMN)
+        pVariable2Iterator.reset(new DataRangeByColumnIterator(mVariable2Range));
+    else
+        pVariable2Iterator.reset(new DataRangeByRowIterator(mVariable2Range));
+
+    aTemplate.autoReplaceRange("%VARIABLE1_RANGE%", pVariable1Iterator->get());
+    aTemplate.autoReplaceRange("%VARIABLE2_RANGE%", pVariable2Iterator->get());
+
+    aOutput.writeBoldString(ScResId(STR_ZTEST));
+    aOutput.newLine();
+
+    // Alpha
+    aOutput.writeString(ScResId(STR_LABEL_ALPHA));
+    aOutput.nextColumn();
+    aOutput.writeValue(0.05);
+    aTemplate.autoReplaceAddress("%ALPHA%", aOutput.current());
+    aOutput.newLine();
+
+    // Hypothesized mean difference
+    aOutput.writeString(ScResId(STR_HYPOTHESIZED_MEAN_DIFFERENCE_LABEL));
+    aOutput.nextColumn();
+    aOutput.writeValue(0);
+    aTemplate.autoReplaceAddress("%HYPOTHESIZED_MEAN_DIFFERENCE%", aOutput.current());
+    aOutput.newLine();
+
+    // Variable Label
+    aOutput.nextColumn();
+    aOutput.writeBoldString(ScResId(STR_VARIABLE_1_LABEL));
+    aOutput.nextColumn();
+    aOutput.writeBoldString(ScResId(STR_VARIABLE_2_LABEL));
+    aOutput.newLine();
+
+    // Known Variance
+    aOutput.writeString(ScResId(STR_ZTEST_KNOWN_VARIANCE));
+    aOutput.nextColumn();
+    aOutput.writeValue(0);
+    aTemplate.autoReplaceAddress("%KNOWN_VARIANCE_VARIABLE1%", aOutput.current());
+    aOutput.nextColumn();
+    aOutput.writeValue(0);
+    aTemplate.autoReplaceAddress("%KNOWN_VARIANCE_VARIABLE2%", aOutput.current());
+    aOutput.newLine();
+
+    // Mean
+    aOutput.writeString(ScResId(STRID_CALC_MEAN));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=AVERAGE(%VARIABLE1_RANGE%)");
+    aTemplate.autoReplaceAddress("%MEAN_VARIABLE1%", aOutput.current());
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=AVERAGE(%VARIABLE2_RANGE%)");
+    aTemplate.autoReplaceAddress("%MEAN_VARIABLE2%", aOutput.current());
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // Observations
+    aOutput.writeString(ScResId(STR_OBSERVATIONS_LABEL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=COUNT(%VARIABLE1_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%OBSERVATION_VARIABLE1%", aOutput.current());
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=COUNT(%VARIABLE2_RANGE%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%OBSERVATION_VARIABLE2%", aOutput.current());
+    aOutput.newLine();
+
+    // Observed mean difference
+    aOutput.writeString(ScResId(STR_OBSERVED_MEAN_DIFFERENCE_LABEL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=%MEAN_VARIABLE1% - %MEAN_VARIABLE2%");
+    aOutput.writeMatrixFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%OBSERVED_MEAN_DIFFERENCE%", aOutput.current());
+    aOutput.newLine();
+
+    // z
+    aOutput.writeString(ScResId(STR_ZTEST_Z_VALUE));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=(%OBSERVED_MEAN_DIFFERENCE% - %HYPOTHESIZED_MEAN_DIFFERENCE%) / SQRT( %KNOWN_VARIANCE_VARIABLE1% / %OBSERVATION_VARIABLE1% + %KNOWN_VARIANCE_VARIABLE2% / %OBSERVATION_VARIABLE2% )");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aTemplate.autoReplaceAddress("%Z_STAT%", aOutput.current());
+    aOutput.newLine();
+
+    // P one-tail
+    aOutput.writeString(ScResId(STR_ZTEST_P_ONE_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=1 - NORMSDIST(ABS(%Z_STAT%))");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // z critical one-tail
+    aOutput.writeString(ScResId(STR_ZTEST_Z_CRITICAL_ONE_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=-NORMSINV(%ALPHA%)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // P two-tail
+    aOutput.writeString(ScResId(STR_ZTEST_P_TWO_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=2 * NORMSDIST(-ABS(%Z_STAT%))");
+    aOutput.writeFormula(aTemplate.getTemplate());
+    aOutput.newLine();
+
+    // z critical two-tail
+    aOutput.writeString(ScResId(STR_ZTEST_Z_CRITICAL_TWO_TAIL));
+    aOutput.nextColumn();
+    aTemplate.setTemplate("=-NORMSINV(%ALPHA%/2)");
+    aOutput.writeFormula(aTemplate.getTemplate());
+
+    return ScRange(aOutput.mMinimumAddress, aOutput.mMaximumAddress);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */