Gamma在C ++中分布随机变量

boost::mt19937 rng;
boost::gamma_distribution<> pdf(alpha);
boost::variate_generator<boost::mt19937&, boost::gamma_distribution<> >
    generator(rng, pdf);

generator

#include <random>
#include <iostream>

int main()
{
    typedef std::mt19937 G;
    typedef std::gamma_distribution<> D;
    G g;  // seed if you want with integral argument
    double k = .5;      // http://en.wikipedia.org/wiki/Gamma_distribution
    double theta = 2.0;
    D d(k, theta);
    std::cout << d(g) << 'n';
}

<random>

boost::variate_generator