extractSE function

Extract SE of Fixed Effects

This function extracts the standard errors (SE) of the fixed effects of a mixed model fit with coxme, glmer, lmer, lmerModLmerTest, and lmekin and adds the appropriate labels. 1.1

extractSE(mod, ...)

## S3 method for class 'coxme'
extractSE(mod, ...)

## S3 method for class 'lmekin'
extractSE(mod, ...)

## S3 method for class 'mer'
extractSE(mod, ...)

## S3 method for class 'merMod'
extractSE(mod, ...)

## S3 method for class 'lmerModLmerTest'
extractSE(mod, ...)

Arguments

• mod: an object of coxme, lmekin, mer, merMod, or lmerModTest class.
• ...: additional arguments passed to the function.

Details

These extractor functions use vcov.coxme, vcov.lmekin, vcov.mer, and vcov.merMod. Some of these functions are called by modavg and modavgShrink, depending on the class of the objects.

Returns

Returns the SE's of the fixed effects with the appropriate labels for each.

Author(s)

Marc J. Mazerolle

See Also

modavg, glmer, lmer, coxme, lmekin

Examples

##modified example from ?glmer
## Not run:

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)
##print summary
summary(gm1)
##extract variance-covariance matrix of fixed effects
vcov(gm1)
##extract SE's of fixed effects - no labels
sqrt(diag(vcov(gm1))) #no labels
extractSE(gm1)  #with labels
detach(package:lme4)
}
## End(Not run)