std::discrete_distribution::probabilities (3) Linux Manual Page

std::discrete_distribution<IntType>::probabilities – std::discrete_distribution<IntType>::probabilities

Synopsis

std::vector<double> probabilities() const; (since C++11)
Obtains a std::vector<double> containing the individual probabilities of each integer that is generated by this distribution.

Parameters

(none)

Return value

An object of type std::vector<double>

Example

// Run this code

#include <iostream>

#include <vector>

#include <random>

int main()

{
    std::discrete_distribution<> d({40, 10, 10, 40});
    std::vector<double> p = d.probabilities();
    for (auto n : p)
        std::cout << n << ' ';
    std::cout << '\n';
}

Output:

  0.4 0.1 0.1 0.4