It is very easy to change the levels of a factor by levels<-(): see its help page.
Great.. thanks.
charge-coupled device? Probably central composite design -- not that I know of.
Yes, I meant central composite design ...
conf.design was ported from S, which does have fac.design.
I see... it may be helpful if this is mentioned next to fac.design so that the user doesn't go searching for it in R...
Thanks, nirmal
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