[R] how to do multiple comparisons in R?

Simon Blomberg blomsp at ozemail.com.au
Mon Sep 12 03:40:26 CEST 2005

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.


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,
>R-help at stat.math.ethz.ch mailing list
>PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

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