VarCorr {lme4}R Documentation

Extract variance and correlation components

Description

Extract the estimated variances, standard deviations, and correlations of the random-effects terms in a linear mixed-effects model, of class lme, or a generalized linear mixed-effects model. When appropriate, the within-group error variance and standard deviation are also calculated.

Usage

VarCorr(x, ...)

Arguments

x a fitted model object, usually an object inheriting from class lmer.
... Additional, optional arguments for some methods. At present none are used.

Value

an object of class VarCorr.

See Also

lmer, VarCorr-class

Examples

(fm1 <- lmer(decrease ~ treatment + (1|rowpos) + (1|colpos),
             OrchardSprays))
VarCorr(fm1)

[Package lme4 version 0.95-8 Index]