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psychology
2000 Jul 05
1
Tukey.aov with split-plot designs
...Win98 (the upkey doesn't
work on my IBM either as has been previously reported by others).
The function aov doesn't return either the residuals or the residual
degrees of freedom for split-plot designs.
If you use the following code from Baron and Li's "Notes on the use of R
for psycology experiments and questionnaires"
data <- c(30,14,24,38,26,28,18,20,34,28,16,10,18,20,14,34,22,30,44,30)
Stv.df <-
data.frame(rt=data,subj=factor(rep(paste("subj",1:5,sep=""),4)),drug=factor(
rep(paste("drug",1:4,sep=""),c(5,5,5,5))))
res0 <- aov...