ff9432f97b
* Add, and update, documentation build targets. * adding serialization to stats * serialize rolling stats
124 lines
4.1 KiB
C++
124 lines
4.1 KiB
C++
// (C) Copyright Eric Niebler 2005.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/test/unit_test.hpp>
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#include <boost/test/floating_point_comparison.hpp>
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#include <boost/accumulators/accumulators.hpp>
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#include <boost/accumulators/statistics/stats.hpp>
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#include <boost/accumulators/statistics/weighted_mean.hpp>
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#include <boost/accumulators/statistics/variates/covariate.hpp>
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#include <sstream>
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#include <boost/archive/text_oarchive.hpp>
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#include <boost/archive/text_iarchive.hpp>
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using namespace boost;
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using namespace unit_test;
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using namespace accumulators;
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template<typename T>
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void assert_is_double(T const &)
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{
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BOOST_MPL_ASSERT((is_same<T, double>));
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}
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typedef accumulator_set<int, stats<tag::mean,
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tag::mean_of_variates<int, tag::covariate1> > > mean_t;
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typedef accumulator_set<int, stats<tag::mean(immediate),
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tag::mean_of_variates<int, tag::covariate1>(immediate) > > immediate_mean_t;
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///////////////////////////////////////////////////////////////////////////////
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// test_stat
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//
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void test_stat()
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{
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mean_t acc, test_acc(sample = 0);
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acc(1, covariate1 = 3);
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BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
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BOOST_CHECK_EQUAL(1u, count(acc));
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BOOST_CHECK_EQUAL(1, sum(acc));
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BOOST_CHECK_CLOSE(3., (accumulators::mean_of_variates<int, tag::covariate1>(acc)), 1e-5);
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acc(0, covariate1 = 4);
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BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5);
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BOOST_CHECK_EQUAL(2u, count(acc));
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BOOST_CHECK_EQUAL(1, sum(acc));
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BOOST_CHECK_CLOSE(3.5, (accumulators::mean_of_variates<int, tag::covariate1>(acc)), 1e-5);
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acc(2, covariate1 = 8);
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BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
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BOOST_CHECK_EQUAL(3u, count(acc));
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BOOST_CHECK_EQUAL(3, sum(acc));
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BOOST_CHECK_CLOSE(5., (accumulators::mean_of_variates<int, tag::covariate1>(acc)), 1e-5);
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assert_is_double(mean(acc));
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immediate_mean_t acc2, test_acc2(sample = 0);
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acc2(1, covariate1 = 3);
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BOOST_CHECK_CLOSE(1., mean(acc2), 1e-5);
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BOOST_CHECK_EQUAL(1u, count(acc2));
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BOOST_CHECK_CLOSE(3., (accumulators::mean_of_variates<int, tag::covariate1>(acc2)), 1e-5);
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acc2(0, covariate1 = 4);
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BOOST_CHECK_CLOSE(0.5, mean(acc2), 1e-5);
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BOOST_CHECK_EQUAL(2u, count(acc2));
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BOOST_CHECK_CLOSE(3.5, (accumulators::mean_of_variates<int, tag::covariate1>(acc2)), 1e-5);
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acc2(2, covariate1 = 8);
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BOOST_CHECK_CLOSE(1., mean(acc2), 1e-5);
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BOOST_CHECK_EQUAL(3u, count(acc2));
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BOOST_CHECK_CLOSE(5., (accumulators::mean_of_variates<int, tag::covariate1>(acc2)), 1e-5);
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assert_is_double(mean(acc2));
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}
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///////////////////////////////////////////////////////////////////////////////
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// test_persistency
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//
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void test_persistency()
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{
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std::stringstream ss;
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{
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mean_t acc1;
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immediate_mean_t acc2;
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acc1(1, covariate1 = 3);
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acc1(0, covariate1 = 4);
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acc1(2, covariate1 = 8);
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acc2(1, covariate1 = 3);
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acc2(0, covariate1 = 4);
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acc2(2, covariate1 = 8);
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BOOST_CHECK_CLOSE(1., mean(acc1), 1e-5);
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BOOST_CHECK_CLOSE(5., (accumulators::mean_of_variates<int, tag::covariate1>(acc1)), 1e-5);
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BOOST_CHECK_CLOSE(1., mean(acc2), 1e-5);
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BOOST_CHECK_CLOSE(5., (accumulators::mean_of_variates<int, tag::covariate1>(acc2)), 1e-5);
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boost::archive::text_oarchive oa(ss);
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acc1.serialize(oa, 0);
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acc2.serialize(oa, 0);
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}
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mean_t acc1;
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immediate_mean_t acc2;
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boost::archive::text_iarchive ia(ss);
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acc1.serialize(ia, 0);
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acc2.serialize(ia, 0);
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BOOST_CHECK_CLOSE(1., mean(acc1), 1e-5);
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BOOST_CHECK_CLOSE(5., (accumulators::mean_of_variates<int, tag::covariate1>(acc2)), 1e-5);
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}
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///////////////////////////////////////////////////////////////////////////////
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// init_unit_test_suite
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//
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test_suite* init_unit_test_suite( int argc, char* argv[] )
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{
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test_suite *test = BOOST_TEST_SUITE("mean test");
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test->add(BOOST_TEST_CASE(&test_stat));
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test->add(BOOST_TEST_CASE(&test_persistency));
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return test;
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}
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