poisstat
Poisson mean and variance
Syntax
M = poisstat(lambda)
[M,V] = poisstat(lambda)
Description
M = poisstat(lambda)
returns
the mean of the Poisson distribution using mean parameters in 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 λ, both the mean and variance are equal to λ.
Examples
Find the mean and variance for the Poisson distribution with λ = 2.
[m,v] = poisstat([1 2; 3 4]) m = 1 2 3 4 v = 1 2 3 4
Extended Capabilities
Version History
Introduced before R2006a