## drop1 may not work right with contrasts: make up an example something like this ...
## options(contrasts=c("contr.sum","contr.poly"))
## drop1(fecpoiss_lm3,test="Chisq",scope=.~.)
if (.Platform$OS.type != "windows") withAutoprint({
library(lme4)
oldopts <- options(contrasts=c("contr.sum","contr.poly"))
fm1 <- lmer(Reaction~Days+(Days|Subject),data=sleepstudy)
drop1(fm1,test="Chisq")
## debug(lme4:::drop1.merMod)
drop1(fm1,test="Chisq",scope=.~.)
fm0 <- lm(Reaction~Days+Subject,data=sleepstudy)
drop1(fm0,test="Chisq",scope=.~.)
options(oldopts) ## restore original contrasts
ff <- function() {
lmer(Reaction~Days+(Days|Subject),data=sleepstudy)
}
drop1(ff()) ## OK because sleepstudy is accessible!
}) ## skip on windows (for speed)
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