I have solved the problem I asked about yesterday.
It turns out that although the help file for make.groups says that it creates a
factor for the which variable - it does not do so. So while
testlm<-lm(data~which,data=shapgroups)
multicomp(testlm)
does not work and I get the following error:
Error in rbind(tlmat, hold): Number of columns of matric
es and lengths of names vectors must match (see arg 2)
Dumped
If I make the following modification:
testlm<-lm(data~factor(which),data=shapgroups)
multicomp(testlm)
everything works fine.
Michael Conklin
mconklin@cresearch.com
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