[R] Strange Problem with "proj" and "aov" for split-plot analysis output

Ulrich Leopold uleopold at science.uva.nl
Sun Aug 1 20:11:13 CEST 2004


> # split-plot analysis - using "aov" with argument "data"
>  > summary(aov.split.04 <- 
> aov(ctime~brand*type+Error(subject),data=choco.split.04))

As far as I can see, maybe you should not use the redirect command in
this case and skip the 'data' argument then it should work:

summary(aov(ctime~brand*type+Error(subject)))

else the results from 'aov(..)' are just redirected to aov.split.04 but
not passed to standard output for 'summary(...)'. And it probably does
not have a data argument?

Maybe someone else could explain why?

Ulrich




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