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Showing content from https://cplusplus.com/reference/random/binomial_distribution/param/ below:

public member function

<random>

param_type param() const;

void param (const param_type& parm);

Distribution parameters

A binomial_distribution is defined by two parameters: an upper bound (t), and a probability (p). An object of type param_type carries this information, but it is meant to be used only to construct or specify the parameters for a binomial_distribution object, not to inspect the individual parameters.

To inspect the individual parameters associated to the distribution object you can use: binomial_distribution::t and binomial_distribution::p.

parm

An object representing the distribution's parameters, obtained by a call to member function param.
param_type is a member type.

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// binomial_distribution::param
#include <iostream>
#include <random>

int main()
{
  std::default_random_engine generator;
  std::binomial_distribution<int> d1(100,0.5);
  std::binomial_distribution<int> d2(d1.param());

  // print two independent values:
  std::cout << d1(generator) << std::endl;
  std::cout << d2(generator) << std::endl;

  return 0;
}

binomial_distribution::(constructor)

Construct binomial distribution (public member function)

binomial_distribution::reset

Reset distribution (public member function)

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