56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
// Copyright John Maddock 2007.
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// Copyright Paul A. Bristow 2007, 2010.
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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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#ifdef _MSC_VER
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# pragma warning (disable : 4305) // 'initializing' : truncation from 'long double' to 'const eval_type'
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# pragma warning (disable : 4244) // conversion from 'long double' to 'const eval_type'
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#endif
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#include <iostream>
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using std::cout; using std::endl;
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//[policy_eg_3
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#include <boost/math/distributions/binomial.hpp>
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using boost::math::binomial_distribution;
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// Begin by defining a policy type, that gives the behaviour we want:
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//using namespace boost::math::policies; or explicitly
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using boost::math::policies::policy;
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using boost::math::policies::promote_float;
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using boost::math::policies::discrete_quantile;
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using boost::math::policies::integer_round_nearest;
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typedef policy<
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promote_float<false>, // Do not promote to double.
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discrete_quantile<integer_round_nearest> // Round result to nearest integer.
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> mypolicy;
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//
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// Then define a new distribution that uses it:
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typedef boost::math::binomial_distribution<float, mypolicy> mybinom;
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// And now use it to get the quantile:
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int main()
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{
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cout << "quantile(mybinom(200, 0.25), 0.05) is: " <<
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quantile(mybinom(200, 0.25), 0.05) << endl;
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}
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//]
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/*
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Output:
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quantile(mybinom(200, 0.25), 0.05) is: 40
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*/
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