poisstat (Statistics Toolbox)

Mean and variance for the Poisson distribution.

Syntax

M = poisstat(LAMBDA)
[M,V] = poisstat(LAMBDA)

Description

M = poisstat(LAMBDA) returns the mean of the Poisson distribution with parameter LAMBDA. The size of M is the size of LAMBDA.

[M,V] = poisstat(LAMBDA) also returns the variance V of the Poisson distribution.

For the Poisson distribution with parameter , both the mean and variance are equal to .

Examples

Find the mean and variance for the Poisson distribution with = 2.

[m,v] = poisstat([1 2; 3 4])
m =
     1     2
     3     4
v =
     1     2
     3     4

poissrnd polyconf