3.5.3.7.12 Poisspdf

Definition:

poisspdf(X,lambda) returns the Poisson probability density function at each of the values in X using mean parameters in lambda.

f(x|\lambda )=\frac{\lambda ^x}{x!}e^{-\lambda }I_{(0,1,...)}(x)

Parameters:

x (input, integer)
x \geq 0
lambda (input, double)
\lambda >0.

See Also

Cauchypdf, exppdf, gampdf, Lappdf, Lognpdf, Normpdf