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Library/boost/libs/math/example/policy_ref_snip2.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! #include <iostream> using std::cout; using std::endl; //[policy_ref_snip2 #include <boost/math/distributions/normal.hpp> using boost::math::normal_distribution; using namespace boost::math::policies; // Define a specific policy: typedef policy< overflow_error<ignore_error> > my_policy; // Define the distribution, using my_policy: typedef normal_distribution<double, my_policy> my_norm; // Construct a my_norm distribution, using default mean and standard deviation, // and get a 0.05 or 5% quantile: double q = quantile(my_norm(), 0.05); // = -1.64485 //] //[/policy_ref_snip2] int main() { my_norm n; // Construct a my_norm distribution, // using default mean zero and standard deviation unity. double q = quantile(n, 0.05); // and get a quantile. cout << "quantile(my_norm(), 0.05) = " << q << endl; } /* Output: quantile(my_norm(), 0.05) = -1.64485 */