[R] Multiple Comparisons

Douglas Bates bates at stat.wisc.edu
Tue Nov 28 15:33:57 CET 2000

Prof Brian Ripley <ripley at stats.ox.ac.uk> writes:

> > Date: Tue, 28 Nov 2000 08:11:10 -0500 (EST)
> > From: Doc Robinson <vbr at geomant.erin.utoronto.ca>
> > I have used multicomp    in S-Plus 2000 to do multiple comparisons
> > and have had difficult time locating whether or not this is
> > availabe in R or one of the add-ons to R.......is it something
> > that is goin  to be added in the near future ?
> > or have i missed something in my search ?
> The answer depends if you are proposing to contribute a version!
> There is nothing anything like as comprehensive, as far as I know.
> multicomp is not part of S, and for fairly obvious reasons the R
> project is not attempting to clone the work of a commercial organization.
> If you have S-PLUS 2000, why not use it for this?
> There are some simple multiple comparison things in R: look at the
> *pairwise* functions in ctest, for example.

There is a Tukey studentized range test available in the Devore5
package.  Rukmini Kethireddypally <rukmini at stat.wisc.edu> is working
on Duncan's multiple comparison test.
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