zeroCheck: Expected zeros from a Poisson model

In samuelVJrobinson/MCMCglmmExtras: Convenience functions for Hadfield's MCMCglmm package

Description

Posterior predictive checks for zero-inflation (MCMCglmm course notes pg. 104). Runs simulation NITT times, using individual realizations from the model to simulate a poisson distribution. The number of zeros from each simulation are plotted along with the actual number of zeros from the dataset, in order to decide if the model requires a zero-inflation term ('zipoisson')

Usage

zeroCheck(mod, dat)

Arguments

dat	Data frame used to fit mod1
mod1	MCMCglmm model

Examples

load(data)
mod1<-MCMCglmm(Count~x,data=data,family='poisson')
zeroCheck(mod1,data)

samuelVJrobinson/MCMCglmmExtras documentation built on May 29, 2019, 1:04 p.m.