WSJT-X/boost/libs/math/example/policy_ref_snip2.cpp

48 lines
1.3 KiB
C++

// 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
*/