I've done it after bootstrapping eigen coefficients so that I have some
confidence in a rejection of isometry when dealing with multiple groups
(Common PCAs). I've got an unpublished manuscript (revising it now
actually) explaining my methods if you would like to see it. But, you
can probably als
http://www.iprs.it/brainelsa/BACKUP_cd/ethl_asp.htm
I would appreciate any comments about this essay.
Sincerely,
David Herman
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For more information see http://life.bio.sunysb.edu/morph/morphmet.html.