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// (C) Copyright Eric Niebler, Olivier Gygi 2006.
// 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/tools/floating_point_comparison.hpp>
#include <boost/accumulators/accumulators.hpp>
#include <boost/accumulators/statistics/stats.hpp>
#include <boost/accumulators/statistics/weighted_moment.hpp>
using namespace boost;
using namespace unit_test;
using namespace accumulators;
///////////////////////////////////////////////////////////////////////////////
// test_stat
//
void test_stat()
{
accumulator_set<double, stats<tag::weighted_moment<2> >, double> acc2;
accumulator_set<double, stats<tag::weighted_moment<7> >, double> acc7;
acc2(2.1, weight = 0.7);
acc2(2.7, weight = 1.4);
acc2(1.8, weight = 0.9);
acc7(2.1, weight = 0.7);
acc7(2.7, weight = 1.4);
acc7(1.8, weight = 0.9);
BOOST_CHECK_CLOSE(5.403, accumulators::weighted_moment<2>(acc2), 1e-5);
BOOST_CHECK_CLOSE(548.54182, accumulators::weighted_moment<7>(acc7), 1e-5);
}
///////////////////////////////////////////////////////////////////////////////
// init_unit_test_suite
//
test_suite* init_unit_test_suite( int argc, char* argv[] )
{
test_suite *test = BOOST_TEST_SUITE("weighted_moment test");
test->add(BOOST_TEST_CASE(&test_stat));
return test;
}
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