Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

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

public member function

<random>

explicit poisson_distribution ( double mean = 1.0 );

explicit poisson_distribution ( const param_type& parm );

Construct Poisson distribution

mean

Expected number of events in the interval (μ).
This represents the rate at which the events being counted are observed, on average.
Its value shall be positive (μ>0).

parm

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

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

// poisson_distribution example
#include <iostream>
#include <chrono>
#include <random>

int main()
{
  // construct a trivial random generator engine from a time-based seed:
  unsigned seed = std::chrono::system_clock::now().time_since_epoch().count();
  std::default_random_engine generator (seed);

  std::poisson_distribution<int> distribution (5.2);

  std::cout << "some Poisson-distributed results (mean=5.2): ";
  for (int i=0; i<10; ++i)
    std::cout << distribution(generator) << " ";

  std::cout << std::endl;

  return 0;
}

some Poisson-distributed results (mean=5.2): 5 5 9 7 3 1 5 7 7 2

poisson_distribution::reset

Reset distribution (public member function)

poisson_distribution::param

Distribution parameters (public member function)

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4