1 files changed, 34 insertions, 0 deletions
diff --git a/src/libnetdata/statistical/statistical.h b/src/libnetdata/statistical/statistical.h
new file mode 100644
index 000000000..f3ecfadb4
--- /dev/null
+++ b/src/libnetdata/statistical/statistical.h
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_STATISTICAL_H
+#define NETDATA_STATISTICAL_H 1
+
+#include "../libnetdata.h"
+
+void log_series_to_stderr(NETDATA_DOUBLE *series, size_t entries, NETDATA_DOUBLE result, const char *msg);
+
+NETDATA_DOUBLE average(const NETDATA_DOUBLE *series, size_t entries);
+NETDATA_DOUBLE moving_average(const NETDATA_DOUBLE *series, size_t entries, size_t period);
+NETDATA_DOUBLE median(const NETDATA_DOUBLE *series, size_t entries);
+NETDATA_DOUBLE moving_median(const NETDATA_DOUBLE *series, size_t entries, size_t period);
+NETDATA_DOUBLE running_median_estimate(const NETDATA_DOUBLE *series, size_t entries);
+NETDATA_DOUBLE standard_deviation(const NETDATA_DOUBLE *series, size_t entries);
+NETDATA_DOUBLE single_exponential_smoothing(const NETDATA_DOUBLE *series, size_t entries, NETDATA_DOUBLE alpha);
+extern NETDATA_DOUBLE
+single_exponential_smoothing_reverse(const NETDATA_DOUBLE *series, size_t entries, NETDATA_DOUBLE alpha);
+NETDATA_DOUBLE double_exponential_smoothing(const NETDATA_DOUBLE *series, size_t entries,
+    NETDATA_DOUBLE alpha,
+    NETDATA_DOUBLE beta,
+    NETDATA_DOUBLE *forecast);
+NETDATA_DOUBLE holtwinters(const NETDATA_DOUBLE *series, size_t entries,
+    NETDATA_DOUBLE alpha,
+    NETDATA_DOUBLE beta,
+    NETDATA_DOUBLE gamma,
+    NETDATA_DOUBLE *forecast);
+NETDATA_DOUBLE sum_and_count(const NETDATA_DOUBLE *series, size_t entries, size_t *count);
+NETDATA_DOUBLE sum(const NETDATA_DOUBLE *series, size_t entries);
+NETDATA_DOUBLE median_on_sorted_series(const NETDATA_DOUBLE *series, size_t entries);
+NETDATA_DOUBLE *copy_series(const NETDATA_DOUBLE *series, size_t entries);
+void sort_series(NETDATA_DOUBLE *series, size_t entries);
+
+#endif //NETDATA_STATISTICAL_H