RandomPoisson Routine

Summary

Poisson distribution random generator.

Declaration

Procedure RandomPoisson(lambda: TSample; Results: TDenseMtxVec; Seed: Integer = -1);

Description

This routine generates Result.Length pseudo random numbers, using the Poisson distribution with parameter lambda. The random numbers are stored in the Results vector. An exception is raised if Result vector is complex.

Example 1

Generate 2000 random numbers by using the Poisson distribution with parameter lambda=2.31.

  Uses MtxExpr, StatRandom;
  procedure Example;
    var Res: Vector;
  begin
    Res.Size(2000);
    RandomPoisson(2.31, Res);
  end;

  #include "MtxVecCpp.h"
  #include "StatRandom.hpp"
  void __fastcall Example()
  {
    Vector Res;
    Res->Size(2000,false);
    RandomPoisson(2.31, Res,-1);
  }

  using Dew.Math;
  using Dew.Stats.Units;
  namespace Dew.Examples
  {
     private void Example()
     {
       Vector r = new Vector(2000,false);
       StatRandom.RandomPoisson(2.31,r,-1);
     }
  }