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Library/boost/libs/math/example/policy_ref_snip8.cpp
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19 дек 2024, 19:11
19 дек 2024, 19:11
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// Copyright John Maddock 2007. // Copyright Paul A. Bristow 2010. // 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) // Note that this file contains quickbook mark-up as well as code // and comments, don't change any of the special comment mark-ups! //[policy_ref_snip8 #include <boost/math/distributions/negative_binomial.hpp> using boost::math::negative_binomial_distribution; using namespace boost::math::policies; typedef negative_binomial_distribution< double, policy<discrete_quantile<integer_round_nearest> > > dist_type; // Lower quantile rounded (down) to nearest: double x = quantile(dist_type(20, 0.3), 0.05); // 27 // Upper quantile rounded (down) to nearest: double y = quantile(complement(dist_type(20, 0.3), 0.05)); // 68 //] //[/policy_ref_snip8] #include <iostream> using std::cout; using std::endl; int main() { cout << "using policy<discrete_quantile<integer_round_nearest> " << endl << "quantile(dist_type(20, 0.3), 0.05) = " << x << endl << "quantile(complement(dist_type(20, 0.3), 0.05)) " << y << endl; } /* Output: using policy<discrete_quantile<integer_round_nearest> quantile(dist_type(20, 0.3), 0.05) = 27 quantile(complement(dist_type(20, 0.3), 0.05)) 68 */