R help - Oct 2005 - Two factor (or more) non-parametric comparison of means

Can anyone suggest a good non-parametric test, and an R implementation of the
test,  that allows for two or more factors? Wilcoxon signed rank allows for only
one.
Thanks,
John
 
John Sorkin M.D., Ph.D.
Chief, Biostatistics and Informatics
Baltimore VA Medical Center GRECC and
University of Maryland School of Medicine Claude Pepper OAIC
 
University of Maryland School of Medicine
Division of Gerontology
Baltimore VA Medical Center
10 North Greene Street
GRECC (BT/18/GR)
Baltimore, MD 21201-1524
 
410-605-7119 
- NOTE NEW EMAIL ADDRESS:
jsorkin@grecc.umaryland.edu


	[[alternative HTML version deleted]]

?kruskal.test

2005/10/11, John Sorkin <jsorkin at
grecc.umaryland.edu>:
> Can anyone suggest a good non-parametric test, and an R implementation of
the test,  that allows for two or more factors? Wilcoxon signed rank allows for
only one.
> Thanks,
> John
>
> John Sorkin M.D., Ph.D.
> Chief, Biostatistics and Informatics
> Baltimore VA Medical Center GRECC and
> University of Maryland School of Medicine Claude Pepper OAIC
>
> University of Maryland School of Medicine
> Division of Gerontology
> Baltimore VA Medical Center
> 10 North Greene Street
> GRECC (BT/18/GR)
> Baltimore, MD 21201-1524
>
> 410-605-7119
> -- NOTE NEW EMAIL ADDRESS:
> jsorkin at grecc.umaryland.edu
>
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
>

--
Johan Sandblom  N8, MRC, Karolinska sjh
t +46851776108  17176 Stockholm
m +46735521477  Sweden
"What is wanted is not the will to believe, but the
will to find out, which is the exact opposite"
- Bertrand Russell

I suspect that John may be looking for ?friedman.test, which I believe
will allow for a two-way non-parametric test.

kruskal.test() will perform a non-parametric test on two or more samples
(or factor levels) as a generalization of wilcox.test() for one or two
samples (or factor levels).

HTH,

Marc Schwartz

On Tue, 2005-10-11 at 18:22 +0200, Johan Sandblom wrote:
> ?kruskal.test
> 
> 2005/10/11, John Sorkin <jsorkin at grecc.umaryland.edu>:
> > Can anyone suggest a good non-parametric test, and an R
> implementation of the test,  that allows for two or more factors?
> Wilcoxon signed rank allows for only one.
> > Thanks,
> > John