1 files changed, 110 insertions, 0 deletions
diff --git a/src/boost/libs/accumulators/test/median.cpp b/src/boost/libs/accumulators/test/median.cpp
new file mode 100644
index 00000000..e3483932
--- /dev/null
+++ b/src/boost/libs/accumulators/test/median.cpp
@@ -0,0 +1,110 @@
+//  (C) Copyright 2006 Eric Niebler, Olivier Gygi
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/test/unit_test.hpp>
+#include <boost/test/floating_point_comparison.hpp>
+#include <boost/random.hpp>
+#include <boost/accumulators/accumulators.hpp>
+#include <boost/accumulators/statistics/stats.hpp>
+#include <boost/accumulators/statistics/median.hpp>
+#include <sstream>
+#include <boost/archive/text_oarchive.hpp>
+#include <boost/archive/text_iarchive.hpp>
+
+using namespace boost;
+using namespace unit_test;
+using namespace accumulators;
+
+
+typedef accumulator_set<double, stats<tag::median(with_p_square_quantile) > > p_square_median_t;
+typedef accumulator_set<double, stats<tag::median(with_density) > > dist_median_t;
+typedef accumulator_set<double, stats<tag::median(with_p_square_cumulative_distribution) > > p_square_dist_median_t;
+
+///////////////////////////////////////////////////////////////////////////////
+// test_stat
+//
+void test_stat()
+{
+    // two random number generators
+    double mu = 1.;
+    boost::lagged_fibonacci607 rng;
+    boost::normal_distribution<> mean_sigma(mu,1);
+    boost::variate_generator<boost::lagged_fibonacci607&, boost::normal_distribution<> > normal(rng, mean_sigma);
+
+    p_square_median_t acc;
+    dist_median_t acc_dens( density_cache_size = 10000, density_num_bins = 1000 );
+    p_square_dist_median_t acc_cdist( p_square_cumulative_distribution_num_cells = 100 );
+
+    for (std::size_t i=0; i<100000; ++i)
+    {
+        double sample = normal();
+        acc(sample);
+        acc_dens(sample);
+        acc_cdist(sample);
+    }
+
+    BOOST_CHECK_CLOSE(1., median(acc), 1.);
+    BOOST_CHECK_CLOSE(1., median(acc_dens), 1.);
+    BOOST_CHECK_CLOSE(1., median(acc_cdist), 3.);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// test_persistency
+//
+void test_persistency()
+{
+    // two random number generators
+    double mu = 1.;
+    boost::lagged_fibonacci607 rng;
+    boost::normal_distribution<> mean_sigma(mu,1);
+    boost::variate_generator<boost::lagged_fibonacci607&, boost::normal_distribution<> > normal(rng, mean_sigma);
+    std::stringstream ss;
+    {
+        p_square_median_t acc;
+        dist_median_t acc_dens( density_cache_size = 10000, density_num_bins = 1000 );
+        p_square_dist_median_t acc_cdist( p_square_cumulative_distribution_num_cells = 100 );
+
+        for (std::size_t i=0; i<100000; ++i)
+        {
+            double sample = normal();
+            acc(sample);
+            acc_dens(sample);
+            acc_cdist(sample);
+        }
+
+        BOOST_CHECK_CLOSE(1., median(acc), 1.);
+        BOOST_CHECK_CLOSE(1., median(acc_dens), 1.);
+        BOOST_CHECK_CLOSE(1., median(acc_cdist), 3.);
+
+        boost::archive::text_oarchive oa(ss);
+        acc.serialize(oa, 0);
+        acc_dens.serialize(oa, 0);
+        acc_cdist.serialize(oa, 0);
+    }
+
+    p_square_median_t acc;
+    dist_median_t acc_dens( density_cache_size = 10000, density_num_bins = 1000 );
+    p_square_dist_median_t acc_cdist( p_square_cumulative_distribution_num_cells = 100 );
+    boost::archive::text_iarchive ia(ss);
+    acc.serialize(ia, 0);
+    acc_dens.serialize(ia, 0);
+    acc_cdist.serialize(ia, 0);
+    BOOST_CHECK_CLOSE(1., median(acc), 1.);
+    BOOST_CHECK_CLOSE(1., median(acc_dens), 1.);
+    BOOST_CHECK_CLOSE(1., median(acc_cdist), 3.);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// init_unit_test_suite
+//
+test_suite* init_unit_test_suite( int argc, char* argv[] )
+{
+    test_suite *test = BOOST_TEST_SUITE("median test");
+
+    test->add(BOOST_TEST_CASE(&test_stat));
+    test->add(BOOST_TEST_CASE(&test_persistency));
+
+    return test;
+}