In article <396259e6$0$[EMAIL PROTECTED]>, [EMAIL PROTECTED]
says...
>
> Is there a freeware (or cheap, <$200) software package that can
> setup and analyze factorial designs and do response surface analyses?
> I looked at the "R" software and I couldn't find references to
> factorial designs or response surface anywhere.
Do you have the pdf-file "Data Analysis and Graphics Using R – An
Introduction" by J H Maindonald? It's available at Cran sites under
"Contributed documentation" or at http://room.anu.edu.au/~johnm. It's a
good document to get you started in R and it has information on using
contrasts and interactions in R.
Good luck,
John Hendrickx
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