poissrnd (Statistics Toolbox)

Random numbers from the Poisson distribution.

Syntax

R = poissrnd(LAMBDA)
R = poissrnd(LAMBDA,m)
R = poissrnd(LAMBDA,m,n)

Description

R = poissrnd(LAMBDA) generates Poisson random numbers with mean LAMBDA. The size of R is the size of LAMBDA.

R = poissrnd(LAMBDA,m) generates Poisson random numbers with mean LAMBDA, where m is a 1-by-2 vector that contains the row and column dimensions of R.

R = poissrnd(LAMBDA,m,n) generates Poisson random numbers with mean LAMBDA, where scalars m and n are the row and column dimensions of R.

Examples

Generate a random sample of 10 pseudo-observations from a Poisson distribution with = 2.

lambda = 2;
random_sample1 = poissrnd(lambda,1,10)
random_sample1 =
     1     0     1     2     1     3     4     2     0     0
random_sample2 = poissrnd(lambda,[1 10])
random_sample2 =
     1     1     1     5     0     3     2     2     3     4
random_sample3 = poissrnd(lambda(ones(1,10)))
random_sample3 =
     3     2     1     1     0     0     4     0     2     0

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