?kruskal.test
2005/10/11, John Sorkin [EMAIL PROTECTED]:
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
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 (via MN) [EMAIL PROTECTED] writes:
I suspect that John may be looking for ?friedman.test, which I believe
will allow for a two-way non-parametric test.
You could be right, but you could also be wrong... It depends quite a
bit on what is meant by a two-factor comparison of means.
Peter,
Good points all around.
Hopefully John will provide further clarification.
Best regards,
Marc
On Tue, 2005-10-11 at 19:46 +0200, Peter Dalgaard wrote:
Marc Schwartz (via MN) [EMAIL PROTECTED] writes:
I suspect that John may be looking for ?friedman.test, which I believe
will