NOTE:

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I have developed a program that performs multiple regression with permutation
tests. The program was originally introduced in:

Legendre, P., Lapointe, F.-J., & Casgrain, P. (1994). Modeling brain evolution
from behavior: a permutational regression approach. Evolution, 48, 1487-1499.

The new version is quite different from the previous one, and I have spent 
lots of hours on it. If you would like to take a look, please do so
at the following addresses:

<http://alize.ere.umontreal.ca/~casgrain/en/labo/permute/>
<ftp://biol10.biol.umontreal.ca/public_ftp/labo/permute/>

This version has been extensively tested in-house, and is much more robust/easy
to use than the previous one. It is native on Macs and PowerMacs. And of course
it's still free! Please try a few analyses using your data and report the bugs
(if any) back to me.

Best wishes,

Philippe Casgrain
casgrain@magellan.umontreal.ca