binom2pois {DanielBiostatistics10th}

Binomial Approaching Poisson

Description

Binomial Approaching Poisson

Usage

binom2pois(x, lambda, size = c(10L, 100L))

Arguments

x

integer scalar, observed number of responses

lambda

positive numeric scalar, parameter \lambda of Poisson distribution

size

integer vector, parameter n of binomial distribution

Details

Function binom2pois shows how binomial density approaches Poisson density when n\rightarrow\infty and p\rightarrow 0, while holding a constant product np=\lambda.

Value

Function binom2pois returns a 'binom2pois' object, for which a print method, an autolayer and an autoplot method are defined.

See Also

dbinom dpois

Examples

binom2pois(x = 4L, lambda = 6, size = seq.int(10L, 50L, by = 10L))