AICcmodavg (version 2.3-1)

fam.link.mer: Extract Distribution Family and Link Function

Description

This function extracts the distribution family and link function of a generalized linear mixed model fit with glmer or lmer.

Usage

fam.link.mer(mod)

Value

fam.link.mer returns a list with the following components:

family

the family of the distribution of the model.

link

the link function of the model.

supp.link

a character value indicating whether the link function used is supported by predictSE and modavgPred.

Arguments

mod

an object of mer or merMod class resulting from the fit of glmer or lmer.

Author

Marc J. Mazerolle

Details

This utility function extracts the information from an mer or merMod object resulting from glmer or lmer. The function is called by modavg, modavgEffect, modavgPred, and predictSE.

See Also

modavg, modavgPred, predictSE, glmer, lmer

Examples

##modified example from ?glmer
if (FALSE) {
if(require(lme4)){
##create proportion of incidence
cbpp$prop <- cbpp$incidence/cbpp$size
gm1 <- glmer(prop ~ period + (1 | herd), family = binomial,
             weights = size, data = cbpp)
fam.link.mer(gm1)
gm2 <- glmer(prop ~ period + (1 | herd),
             family = binomial(link = "cloglog"), weights = size,
             data = cbpp)
fam.link.mer(gm2)
}
}


##example with linear mixed model with Orthodont data from
##Pinheiro and Bates (2000)
if (FALSE) {
data(Orthodont, package = "nlme")
m1 <- lmer(distance ~ Sex + (1 | Subject), data = Orthodont,
           REML = FALSE)
fam.link.mer(m1)
m2 <- glmer(distance ~ Sex + (1 | Subject),
            family = gaussian(link = "log"), data = Orthodont,
            REML = FALSE)
fam.link.mer(m2)
detach(package:lme4)
}