You should use a PCA of the Procrustes shape coordinates + the natural logarithm of centroid size (as a separate column in the data matrix). For more details see
Mitteroecker P, Gunz P, Bernhard M, Schaefer K, and Bookstein F (2004) Comparison of cranial ontogenetic trajectories among great apes and humans. Journal of Human Evolution 46:679-697. Best Philipp morphmet <[EMAIL PROTECTED]> wrote: > One quick question: > > is it a mistake to use PCA of the shape + Centroid Size to obtain a better > discrimination in a Discriminant Analysis? > > If I use only PCA of the shape the discrimination of the groups is not very > good... > > Thanks, > Diego > -- > Replies will be sent to the list. > For more information visit http://www.morphometrics.org > -- Replies will be sent to the list. For more information visit http://www.morphometrics.org
