ceph/src/boost/libs/math/example/policy_ref_snip5.cpp

   1 //  Copyright John Maddock 2007.
   2 //  Copyright Paul A. Bristow 2010.
   3 //  Use, modification and distribution are subject to the
   4 //  Boost Software License, Version 1.0. (See accompanying file
   5 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 // Note that this file contains quickbook mark-up as well as code
   8 // and comments, don't change any of the special comment mark-ups!
   9
  10 //[policy_ref_snip5
  11
  12 #include <boost/math/distributions/negative_binomial.hpp>
  13 using boost::math::negative_binomial_distribution;
  14
  15 using namespace boost::math::policies;
  16
  17 typedef negative_binomial_distribution<
  18       double,
  19       policy<discrete_quantile<real> >
  20    > dist_type;
  21
  22 // Lower 5% quantile:
  23 double x = quantile(dist_type(20, 0.3), 0.05);
  24 // Upper 95% quantile:
  25 double y = quantile(complement(dist_type(20, 0.3), 0.05));
  26
  27 //] //[/policy_ref_snip5]
  28
  29 #include <iostream>
  30 using std::cout; using std::endl;
  31
  32 int main()
  33 {
  34   cout << "quantile(dist_type(20, 0.3), 0.05)  = " << x
  35     << "\nquantile(complement(dist_type(20, 0.3), 0.05) = " << y << endl;
  36 }
  37
  38 /*
  39
  40 Output:
  41   quantile(dist_type(20, 0.3), 0.05)  = 27.3898
  42   quantile(complement(dist_type(20, 0.3), 0.05) = 68.1584
  43
  44   */
  45