RLRsim (version 3.0)

extract.lmeDesign: Extract the Design of a linear mixed model

Description

These functions extract various elements of the design of a fitted lme-, mer or lmerMod-Object. They are called by exactRLRT and exactLRT.

Usage

extract.lmeDesign(m)

Arguments

m

fitted lme- or mer-Object

Value

• a list with components
  • Vrestimated covariance of the random effects divided by the estimated variance of the residuals
  • Xdesign of the fixed effects
  • Zdesign of the random effects
  • sigmasqvariance of the residuals
  • lambdaratios of the variances of the random effects and the variance of the residuals
  • yresponse variable

Examples

library(nlme)
design <- extract.lmeDesign(lme(distance ~ age + Sex, data = Orthodont,
                             random = ~ 1))
str(design)