RANDP Generate Poisson Random Variable

Section: Random Number Generation

Usage

Generates a vector Poisson random variables with the given parameters. The general syntax for its use is
   y = randp(nu),

where nu is an array containing the rate parameters for the generated random variables.

Function Internals

A Poisson random variable is generally defined by taking the limit of a binomial distribution as the sample size becomes large, with the expected number of successes being fixed (so that the probability of success decreases as 1/N). The Poisson distribution is given by

Example

Here is an exmaple of using randp to generate some Poisson random variables, and also using randbin to do the same using N=1000 trials to approximate the Poisson result.
--> randp(33*ones(1,10))
ans = 
  <int32>  - size: [1 10]
 
Columns 1 to 10
 31  33  34  44  32  29  34  30  32  32  
--> randbin(1000*ones(1,10),33/1000*ones(1,10))
ans = 
  <uint32>  - size: [1 10]
 
Columns 1 to 10
 32  36  36  39  33  34  41  33  42  32