rpois: Simulate count compositions without overdispersion

In compositions: Compositional Data Analysis

Simulate count compositions without overdispersion

Description

Generates multinomial or multi-Poission random variates based on an Aitchison composition.

Usage

rpois.ccomp(n,p,lambda)
rmultinom.ccomp(n,p,N)
          

Arguments

n	number of datasets to be simulated
p	The composition representing the probabilites/portions of the individual parts
lambda	scalar or vector giving the expected total count
N	scalar or vector giving the total count

Details

A count composition is a realisation of a multinomial or multivariate Poisson distribution.

Value

a random dataset ccount dataset

Author(s)

K.Gerald v.d. Boogaart http://www.stat.boogaart.de

See Also

rnorm.ccomp

Examples

p <- acomp(c(3,3,3))
rpois.ccomp(10,p,40)
rmultinom.ccomp(10,p,40)

compositions documentation built on June 22, 2024, 12:15 p.m.