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502 lines
18 KiB
C++
502 lines
18 KiB
C++
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// Copyright John Maddock 2008
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// Copyright Paul A. Bristow
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// Copyright Gautam Sewani
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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#define BOOST_MATH_OVERFLOW_ERROR_POLICY throw_on_error
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#include <boost/math/concepts/real_concept.hpp> // for real_concept
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#include <boost/math/distributions/hypergeometric.hpp>
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#define BOOST_TEST_MAIN
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#include <boost/test/unit_test.hpp> // Boost.Test
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#include <boost/test/results_collector.hpp>
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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 <iostream>
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using std::cout;
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using std::endl;
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using std::setprecision;
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#include <boost/array.hpp>
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#include "functor.hpp"
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#include "handle_test_result.hpp"
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#include "table_type.hpp"
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#define BOOST_CHECK_EX(a) \
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{\
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unsigned int failures = boost::unit_test::results_collector.results( boost::unit_test::framework::current_test_case().p_id ).p_assertions_failed;\
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BOOST_CHECK(a); \
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if(failures != boost::unit_test::results_collector.results( boost::unit_test::framework::current_test_case().p_id ).p_assertions_failed)\
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{\
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std::cerr << "Failure was with data ";\
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std::cerr << std::setprecision(35); \
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std::cerr << "x = " << x << ", r = " << r << ", n = " << n\
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<< ", N = " << N << ", p = " << cp << ", q = " << ccp << std::endl;\
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}\
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}
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void expected_results()
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{
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//
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// Define the max and mean errors expected for
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// various compilers and platforms.
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//
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const char* largest_type;
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#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
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if(boost::math::policies::digits<double, boost::math::policies::policy<> >() == boost::math::policies::digits<long double, boost::math::policies::policy<> >())
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{
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largest_type = "(long\\s+)?double|real_concept";
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}
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else
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{
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largest_type = "long double|real_concept";
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}
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#else
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largest_type = "(long\\s+)?double";
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#endif
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#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
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if((boost::math::tools::digits<long double>() > boost::math::tools::digits<double>())
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&& (boost::math::tools::digits<long double>() < 100))
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{
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//
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// Some split of errors from long double into double:
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//
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add_expected_result(
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".*", // compiler
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".*", // stdlib
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".*", // platform
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"double", // test type(s)
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"Random.*", // test data group
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".*", 1500, 1500); // test function
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add_expected_result(
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".*", // compiler
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".*", // stdlib
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".*", // platform
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"double", // test type(s)
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".*", // test data group
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".*", 10, 10); // test function
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}
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#endif
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add_expected_result(
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".*", // compiler
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".*", // stdlib
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".*", // platform
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"real_concept", // test type(s)
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"Random.*", // test data group
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".*", 250000000, 25000000); // test function
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add_expected_result(
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".*", // compiler
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".*", // stdlib
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".*", // platform
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largest_type, // test type(s)
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"Random.*", // test data group
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".*", 10000000, 5000000); // test function
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add_expected_result(
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".*", // compiler
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".*", // stdlib
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".*", // platform
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largest_type, // test type(s)
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".*", // test data group
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".*", 50, 20); // test function
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}
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template <class T>
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inline unsigned make_unsigned(T x)
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{
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return static_cast<unsigned>(x);
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}
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template<>
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inline unsigned make_unsigned(boost::math::concepts::real_concept x)
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{
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return static_cast<unsigned>(x.value());
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}
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template <class T>
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T pdf_tester(T r, T n, T N, T x)
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{
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boost::math::hypergeometric_distribution<T> d(make_unsigned(r), make_unsigned(n), make_unsigned(N));
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return pdf(d, x);
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}
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template <class T>
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T cdf_tester(T r, T n, T N, T x)
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{
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boost::math::hypergeometric_distribution<T> d(make_unsigned(r), make_unsigned(n), make_unsigned(N));
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return cdf(d, x);
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}
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template <class T>
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T ccdf_tester(T r, T n, T N, T x)
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{
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boost::math::hypergeometric_distribution<T> d(make_unsigned(r), make_unsigned(n), make_unsigned(N));
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return cdf(complement(d, x));
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}
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template <class Real, class T>
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void do_test_hypergeometric(const T& data, const char* type_name, const char* test_name)
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{
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// warning suppression:
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(void)data;
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(void)type_name;
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(void)test_name;
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#if !defined(TEST_QUANT) || (TEST_QUANT == 0)
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typedef Real value_type;
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typedef value_type (*pg)(value_type, value_type, value_type, value_type);
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#if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS)
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pg funcp = pdf_tester<value_type>;
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#else
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pg funcp = pdf_tester;
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#endif
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boost::math::tools::test_result<value_type> result;
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std::cout << "Testing " << test_name << " with type " << type_name
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<< "\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n";
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//
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// test hypergeometric against data:
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//
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result = boost::math::tools::test_hetero<Real>(
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data,
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bind_func<Real>(funcp, 0, 1, 2, 3),
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extract_result<Real>(4));
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handle_test_result(result, data[result.worst()], result.worst(), type_name, "hypergeometric PDF", test_name);
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#if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS)
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funcp = cdf_tester<value_type>;
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#else
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funcp = cdf_tester;
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#endif
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//
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// test hypergeometric against data:
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//
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result = boost::math::tools::test_hetero<Real>(
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data,
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bind_func<Real>(funcp, 0, 1, 2, 3),
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extract_result<Real>(5));
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handle_test_result(result, data[result.worst()], result.worst(), type_name, "hypergeometric CDF", test_name);
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#if defined(BOOST_MATH_NO_DEDUCED_FUNCTION_POINTERS)
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funcp = ccdf_tester<value_type>;
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#else
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funcp = ccdf_tester;
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#endif
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//
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// test hypergeometric against data:
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//
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result = boost::math::tools::test_hetero<Real>(
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data,
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bind_func<Real>(funcp, 0, 1, 2, 3),
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extract_result<Real>(6));
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handle_test_result(result, data[result.worst()], result.worst(), type_name, "hypergeometric CDF complement", test_name);
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std::cout << std::endl;
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#endif
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}
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template <class Real, class T>
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void do_test_hypergeometric_quantile(const T& data, const char* type_name, const char* test_name)
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{
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typedef Real value_type;
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std::cout << "Checking quantiles with " << test_name << " with type " << type_name
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<< "\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n";
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if(boost::math::tools::digits<value_type>() > 50)
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{
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for(unsigned i = 0; i < data.size(); ++i)
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{
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using namespace boost::math::policies;
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unsigned r = make_unsigned(data[i][0]);
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unsigned n = make_unsigned(data[i][1]);
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unsigned N = make_unsigned(data[i][2]);
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unsigned x = make_unsigned(data[i][3]);
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value_type cp = data[i][5];
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value_type ccp = data[i][6];
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//
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// A bit of warning suppression:
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//
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(void)x;
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(void)n;
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(void)r;
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(void)N;
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(void)cp;
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(void)ccp;
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#if !defined(TEST_QUANT) || (TEST_QUANT == 1)
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boost::math::hypergeometric_distribution<value_type,
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policy<discrete_quantile<integer_round_up> > > du(r, n, N);
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if((cp < 0.9) && (cp > boost::math::tools::min_value<value_type>()))
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{
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BOOST_CHECK_EX(quantile(du, cp) >= x);
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}
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if((ccp < 0.9) && (ccp > boost::math::tools::min_value<value_type>()))
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{
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BOOST_CHECK_EX(quantile(complement(du, ccp)) >= x);
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}
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#endif
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#if !defined(TEST_QUANT) || (TEST_QUANT == 2)
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boost::math::hypergeometric_distribution<value_type,
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policy<discrete_quantile<integer_round_down> > > dl(r, n, N);
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if((cp < 0.9) && (cp > boost::math::tools::min_value<value_type>()))
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{
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BOOST_CHECK_EX(quantile(dl, cp) <= x);
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}
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if((ccp < 0.9) && (ccp > boost::math::tools::min_value<value_type>()))
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{
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BOOST_CHECK_EX(quantile(complement(dl, ccp)) <= x);
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}
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#endif
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#if !defined(TEST_QUANT) || (TEST_QUANT == 3)
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boost::math::hypergeometric_distribution<value_type,
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policy<discrete_quantile<integer_round_nearest> > > dn(r, n, N);
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if((cp < 0.9) && (cp > boost::math::tools::min_value<value_type>()))
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{
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BOOST_CHECK_EX(quantile(dn, cp) == x);
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}
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if((ccp < 0.9) && (ccp > boost::math::tools::min_value<value_type>()))
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{
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BOOST_CHECK_EX(quantile(complement(dn, ccp)) == x);
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}
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#endif
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#if !defined(TEST_QUANT) || (TEST_QUANT == 4)
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boost::math::hypergeometric_distribution<value_type,
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policy<discrete_quantile<integer_round_outwards> > > dou(r, n, N);
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if((cp < 0.9) && (cp > boost::math::tools::min_value<value_type>()))
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{
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if(cp < 0.5)
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{
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BOOST_CHECK_EX(quantile(dou, cp) <= x);
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}
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else
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{
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BOOST_CHECK_EX(quantile(dou, cp) >= x);
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}
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}
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if((ccp < 0.9) && (ccp > boost::math::tools::min_value<value_type>()))
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{
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if(ccp < 0.5)
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{
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BOOST_CHECK_EX(quantile(complement(dou, ccp)) >= x);
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}
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else
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{
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BOOST_CHECK_EX(quantile(complement(dou, ccp)) <= x);
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}
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}
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#endif
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#if !defined(TEST_QUANT) || (TEST_QUANT == 5)
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boost::math::hypergeometric_distribution<value_type,
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policy<discrete_quantile<integer_round_inwards> > > di(r, n, N);
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if((cp < 0.9) && (cp > boost::math::tools::min_value<value_type>()))
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{
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if(cp < 0.5)
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{
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BOOST_CHECK_EX(quantile(di, cp) >= x);
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}
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else
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{
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BOOST_CHECK_EX(quantile(di, cp) <= x);
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}
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}
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if((ccp < 0.9) && (ccp > boost::math::tools::min_value<value_type>()))
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{
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if(ccp < 0.5)
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{
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BOOST_CHECK_EX(quantile(complement(di, ccp)) <= x);
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}
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else
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{
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BOOST_CHECK_EX(quantile(complement(di, ccp)) >= x);
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}
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}
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#endif
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}
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}
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}
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template <class RealType>
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void test_spot(unsigned x, unsigned n, unsigned r, unsigned N,
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RealType p, RealType cp, RealType ccp, RealType tol)
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{
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//
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// A bit of warning suppression:
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//
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(void)x;
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(void)n;
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(void)r;
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(void)N;
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(void)p;
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(void)cp;
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(void)ccp;
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(void)tol;
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#if !defined(TEST_QUANT) || (TEST_QUANT == 0)
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boost::math::hypergeometric_distribution<RealType> d(r, n, N);
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std::pair<unsigned, unsigned> extent = range(d);
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// CDF's:
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BOOST_CHECK_CLOSE(pdf(d, x), p, tol);
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BOOST_CHECK_CLOSE(cdf(d, x), cp, tol);
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BOOST_CHECK_CLOSE(cdf(complement(d, x)), ccp, tol);
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// Again with real-value arguments:
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BOOST_CHECK_CLOSE(pdf(d, static_cast<RealType>(x)), p, tol);
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BOOST_CHECK_CLOSE(cdf(d, static_cast<RealType>(x)), cp, tol);
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BOOST_CHECK_CLOSE(cdf(complement(d, static_cast<RealType>(x))), ccp, tol);
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//
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// Quantiles, don't bother checking these for type float
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// as there's not enough precision in the p and q values
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// to get back to where we started:
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//
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if(boost::math::tools::digits<RealType>() > 50)
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{
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using namespace boost::math::policies;
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boost::math::hypergeometric_distribution<RealType,
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policy<discrete_quantile<integer_round_up> > > du(r, n, N);
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BOOST_CHECK_EX(quantile(du, cp) >= x);
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BOOST_CHECK_EX(quantile(complement(du, ccp)) >= x);
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boost::math::hypergeometric_distribution<RealType,
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policy<discrete_quantile<integer_round_down> > > dl(r, n, N);
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BOOST_CHECK_EX(quantile(dl, cp) <= x);
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BOOST_CHECK_EX(quantile(complement(dl, ccp)) <= x);
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boost::math::hypergeometric_distribution<RealType,
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policy<discrete_quantile<integer_round_nearest> > > dn(r, n, N);
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BOOST_CHECK_EX(quantile(dn, cp) == x);
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BOOST_CHECK_EX(quantile(complement(dn, ccp)) == x);
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}
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//
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// Error checking of out of bounds arguments:
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//
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BOOST_MATH_CHECK_THROW(pdf(d, extent.second + 1), std::domain_error);
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BOOST_MATH_CHECK_THROW(cdf(d, extent.second + 1), std::domain_error);
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BOOST_MATH_CHECK_THROW(cdf(complement(d, extent.second + 1)), std::domain_error);
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if(extent.first > 0)
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{
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BOOST_MATH_CHECK_THROW(pdf(d, extent.first - 1), std::domain_error);
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BOOST_MATH_CHECK_THROW(cdf(d, extent.first - 1), std::domain_error);
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BOOST_MATH_CHECK_THROW(cdf(complement(d, extent.first - 1)), std::domain_error);
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}
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BOOST_MATH_CHECK_THROW(quantile(d, 1.1f), std::domain_error);
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BOOST_MATH_CHECK_THROW(quantile(complement(d, 1.1f)), std::domain_error);
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BOOST_MATH_CHECK_THROW(quantile(d, -0.001f), std::domain_error);
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BOOST_MATH_CHECK_THROW(quantile(complement(d, -0.001f)), std::domain_error);
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//
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||
|
// Checking of extreme values:
|
||
|
//
|
||
|
BOOST_CHECK_EQUAL(quantile(d, 0), extent.first);
|
||
|
BOOST_CHECK_EQUAL(quantile(d, 1), extent.second);
|
||
|
BOOST_CHECK_EQUAL(quantile(complement(d, 0)), extent.second);
|
||
|
BOOST_CHECK_EQUAL(quantile(complement(d, 1)), extent.first);
|
||
|
BOOST_CHECK_EQUAL(cdf(d, extent.second), 1);
|
||
|
BOOST_CHECK_EQUAL(cdf(complement(d, extent.second)), 0);
|
||
|
#endif
|
||
|
}
|
||
|
|
||
|
template <class RealType>
|
||
|
void test_spots(RealType /*T*/, const char* type_name)
|
||
|
{
|
||
|
// Basic sanity checks.
|
||
|
// 50 eps as a percentage, up to a maximum of double precision
|
||
|
// Test data taken from Mathematica 6
|
||
|
#define T RealType
|
||
|
#include "hypergeometric_test_data.ipp"
|
||
|
do_test_hypergeometric<T>(hypergeometric_test_data, type_name, "Mathematica data");
|
||
|
|
||
|
#include "hypergeometric_dist_data2.ipp"
|
||
|
if(boost::is_floating_point<RealType>::value)
|
||
|
{
|
||
|
//
|
||
|
// Don't test this for real_concept: it's too slow!!!
|
||
|
//
|
||
|
do_test_hypergeometric<T>(hypergeometric_dist_data2, type_name, "Random large data");
|
||
|
}
|
||
|
|
||
|
do_test_hypergeometric_quantile<T>(hypergeometric_test_data, type_name, "Mathematica data");
|
||
|
if(boost::is_floating_point<RealType>::value)
|
||
|
{
|
||
|
//
|
||
|
// Don't test this for real_concept: it's too slow!!!
|
||
|
//
|
||
|
do_test_hypergeometric_quantile<T>(hypergeometric_dist_data2, type_name, "Random large data");
|
||
|
}
|
||
|
|
||
|
RealType tolerance = (std::max)(
|
||
|
static_cast<RealType>(2e-16L), // limit of test data
|
||
|
boost::math::tools::epsilon<RealType>());
|
||
|
cout<<"Absolute tolerance:"<<tolerance<<endl;
|
||
|
|
||
|
tolerance *= 50 * 100; // 50eps as a persentage
|
||
|
cout << "Tolerance for type " << typeid(RealType).name() << " is " << tolerance << " %" << endl;
|
||
|
|
||
|
//
|
||
|
// These sanity check values were calculated using the online
|
||
|
// calculator at http://stattrek.com/Tables/Hypergeometric.aspx
|
||
|
// It's assumed that the test values are accurate to no more than
|
||
|
// double precision.
|
||
|
//
|
||
|
test_spot(20, 200, 50, 500, static_cast<T>(0.120748236361163), static_cast<T>(0.563532430195156), static_cast<T>(1 - 0.563532430195156), tolerance);
|
||
|
test_spot(53, 452, 64, 500, static_cast<T>(0.0184749573044286), static_cast<T>(0.0299118078796907), static_cast<T>(1 - 0.0299118078796907), tolerance);
|
||
|
test_spot(32, 1287, 128, 5000, static_cast<T>(0.0807012167418264), static_cast<T>(0.469768774237742), static_cast<T>(1 - 0.469768774237742), tolerance);
|
||
|
test_spot(1, 13, 4, 26, static_cast<T>(0.248695652173913), static_cast<T>(0.296521739130435), static_cast<T>(1 - 0.296521739130435), tolerance);
|
||
|
test_spot(2, 13, 4, 26, static_cast<T>(0.40695652173913), static_cast<T>(0.703478260869565), static_cast<T>(1 - 0.703478260869565), tolerance);
|
||
|
test_spot(3, 13, 4, 26, static_cast<T>(0.248695652173913), static_cast<T>(0.952173913043478), static_cast<T>(1 - 0.952173913043478), tolerance);
|
||
|
test_spot(40, 70, 89, 170, static_cast<T>(0.0721901023798991), static_cast<T>(0.885447799131944), static_cast<T>(1 - 0.885447799131944), tolerance);
|
||
|
|
||
|
boost::math::hypergeometric_distribution<RealType> d(50, 200, 500);
|
||
|
BOOST_CHECK_EQUAL(range(d).first, 0u);
|
||
|
BOOST_CHECK_EQUAL(range(d).second, 50u);
|
||
|
BOOST_CHECK_CLOSE(mean(d), static_cast<RealType>(20), tolerance);
|
||
|
BOOST_CHECK_CLOSE(mode(d), static_cast<RealType>(20), tolerance);
|
||
|
BOOST_CHECK_CLOSE(variance(d), static_cast<RealType>(10.821643286573146292585170340681L), tolerance);
|
||
|
BOOST_CHECK_CLOSE(skewness(d), static_cast<RealType>(0.048833071022952084732902910189366L), tolerance);
|
||
|
BOOST_CHECK_CLOSE(kurtosis_excess(d), static_cast<RealType>(2.5155486690782804816404001878293L), tolerance);
|
||
|
BOOST_CHECK_CLOSE(kurtosis(d), kurtosis_excess(d) + 3, tolerance);
|
||
|
BOOST_CHECK_EQUAL(quantile(d, 0.5f), median(d));
|
||
|
|
||
|
BOOST_MATH_CHECK_THROW(d = boost::math::hypergeometric_distribution<RealType>(501, 40, 500), std::domain_error);
|
||
|
BOOST_MATH_CHECK_THROW(d = boost::math::hypergeometric_distribution<RealType>(40, 501, 500), std::domain_error);
|
||
|
}
|
||
|
|
||
|
|
||
|
BOOST_AUTO_TEST_CASE( test_main )
|
||
|
{
|
||
|
expected_results();
|
||
|
// Basic sanity-check spot values.
|
||
|
// (Parameter value, arbitrarily zero, only communicates the floating point type).
|
||
|
test_spots(0.0F, "float"); // Test float. OK at decdigits = 0 tolerance = 0.0001 %
|
||
|
test_spots(0.0, "double"); // Test double. OK at decdigits 7, tolerance = 1e07 %
|
||
|
#ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
|
||
|
test_spots(0.0L, "long double"); // Test long double.
|
||
|
#ifndef BOOST_MATH_NO_REAL_CONCEPT_TESTS
|
||
|
test_spots(boost::math::concepts::real_concept(0), "real_concept"); // Test real_concept.
|
||
|
#endif
|
||
|
#else
|
||
|
std::cout << "<note>The long double tests have been disabled on this platform "
|
||
|
"either because the long double overloads of the usual math functions are "
|
||
|
"not available at all, or because they are too inaccurate for these tests "
|
||
|
"to pass.</note>" << std::endl;
|
||
|
#endif
|
||
|
|
||
|
|
||
|
} // BOOST_AUTO_TEST_CASE( test_main )
|
||
|
|