rlmerMod-class | R Documentation |
Class "rlmerMod" of Robustly Fitted Mixed-Effect Models
A robust mixed-effects model as returned by rlmer
.
Objects are created by calls to
rlmer
.
Almost all methods available from objects returned from
lmer
are also available for objects returned by
rlmer
. They usage is the same.
It follows a list of some the methods that are exported by this package:
coef
deviance
(disabled, see below)
extractAIC
(disabled, see below)
family
fitted
fixef
formula
getInfo
isGLMM
isLMM
isNLMM
isREML
logLik
(disabled, see below)
model.frame
model.matrix
nobs
plot
predict
ranef
(only partially implemented)
residuals
sigma
summary
terms
update
VarCorr
vcov
weights
A log likelihood or even a pseudo log likelihood
is not defined for the robust estimates returned by rlmer
.
Methods that depend on the log likelihood are therefore not available. For
this reason the methods deviance
, extractAIC
and
logLik
stop with an error if they are called.
rlmer
; corresponding class in package lme4
:
merMod
showClass("rlmerMod") ## convert an object of type 'lmerMod' to 'rlmerMod' ## to use the methods provided by robustlmm fm <- lmer(Yield ~ (1|Batch), Dyestuff) rfm <- as(fm, "rlmerMod") compare(fm, rfm)
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