[R] Games-Howell, Gabriel, Hochberg

[Peter Dalgaard]

Gabor Grothendieck <ggrothendieck at gmail.com> writes:

> What would be nice would be an R routine that automatically
> implements this flowchart.


I'd recommend learning about p.adjust and the multcomp package
*instead* of following the flowchart. (Ignoring heteroscedasticity
seems a bit silly too, given the availability of oneway.test(), and
I'm not too happy about mechanistic dependency upon tests for
normality either.) 
 
> On 11/30/05, Claus Atzenbeck <claus.atzenbeck at freenet.de> wrote:
> > On Tue, 29 Nov 2005, Claus Atzenbeck wrote:
> >
> > > How do you calculate post hoc multiple comparisons tests with R for
> > > normal distributed samples with different variances?
> >
> > In order to make it more visible, I have created an overview that shows
> > my decision about what test I use. It is available at
> > <http://cs.aaue.dk/~claus/temp/TestOverview.pdf>. What can I change that
> > I still can use R to perform my test? (At the very bottom of the
> > overview you see note about the missing tests in R.)
> >
> > Thanks for any comment.
> > Claus
> >
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> 
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   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
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