AIC.zibellreg {bellreg}

Akaike information criterion for zibellreg objects

Description

Akaike information criterion for zibellreg objects

Usage

## S3 method for class 'zibellreg'
AIC(object, ..., k = 2)

Arguments

object

an object of the class zibellreg.

...

further arguments passed to or from other methods.

k

numeric, the penalty per parameter to be used; the default k = 2 is the classical AIC.

Value

the Akaike information criterion value when a single model is passed to the function; otherwise, a data.frame with the Akaike information criterion values and the number of parameters is returned.

Examples

library(bellreg)
data(cells)
fit1 <- zibellreg(cells ~ 1|1, data = cells, approach = "mle")
fit2 <- zibellreg(cells ~ 1|smoker+gender, data = cells, approach = "mle")
fit3 <- zibellreg(cells ~ smoker+gender|smoker+gender, data = cells, approach = "mle")
AIC(fit1, fit2, fit3)