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// student_t_distribution
#include <iostream>
#include <random>
int main()
{
const int nrolls=10000; // number of experiments
const int nstars=100; // maximum number of stars to distribute
// intervals definitions:
const int nintervals=12;
const double first=-3.0;
const double span=0.5;
std::default_random_engine generator;
std::student_t_distribution<double> distribution(10.0);
int p[nintervals]={};
for (int i=0; i<nrolls; ++i) {
double number = distribution(generator);
if ((number>=first)&&(number<first+nintervals*span))
++p[int((number-first)/span)];
}
std::cout << "fisher_f_distribution (10.0):" << std::endl;
std::cout << std::fixed; std::cout.precision(1);
for (int i=0; i<nintervals; ++i) {
std::cout.width(4); std::cout << (first+i*span) << "..";
std::cout.width(4); std::cout << (first+(i+1)*span) << ": ";
std::cout << std::string(p[i]*nstars/nrolls,'*') << std::endl;
}
return 0;
}
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