The citation below indicates the authors used the permax package (yet
another Gentleman authored effort) to implement the free step-down
method of W&Y:
Generalized Rank Tests for Replicated Microarray Data:
Mei-Ling Ting Lee, Robert J. Gray, Harry Bj?rkbacka, Mason W. Freeman
http://www.bepress.com/sagmb/vol4/iss1/art3/
Looking in the current permax documentation pdf, I could not find a
specific citation of W&Y, but looking in older versions of that
package, I did ... see:
http://cran.r-project.org/src/contrib/Archive/permax/permax_1.2.tar.gz
HTH;
--
David Winsemius, MD
Heritage Labs
On Nov 1, 2008, at 10:30 AM, Leif Peterson wrote:
> Is there a Westfall-Yound algorithm available with which I can test
> correlation, 2- and k-sample tests of association?
>
> Thanks, LP
>
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