R has various methods for multiple comparison procedures. See package
multcomp, or ?TukeyHSD or ?pairwise.t.test for example. An
RSiteSearch("multiple comparison") returned 187 results. A priori contrasts
can be constructed using the make.contrasts function in the gmodels
package, for example. We try not to do anything like in SAS.
Simon.
At 11:12 AM 12/09/2005, Hongyu Sun wrote:
>Hi, Sorry I have to bother a question.
>
>Does R have the functions to do lsd, tukey, bonferonni, contrast etc. like
>in SAS?
>
>Many thanks,
>
>HS
>
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