[R] Error for TukeyHSD ?

[Richard M. Heiberger]

TukeyHSD, and glht in the multcomp package, are designed for
aov objects.  They do not have methods for aovlist objects.

The workaround is to download and install the HH package and look at the
maiz example.

library(HH)
?MMC

In that example I show how to get the same sequential sum of squares
without the Error() term as you would get with the Error term.

Rich