Dear morphometricians, I'm doing some research on headshape dimorphism in European Eel using elliptic Fourier analysis. I've used the programs TPSUtil and TPSDig to get the coordinates of the contours of the heads and then used the program PAST to analyze these (with PCA). I've also used the program Shape on the same specimens, but the results were different.
When I used Shape the first principal component explained about 48% of the variance, but when I used PAST the first PC explained 66% of the variance. Is there anyone who can explain this difference and maybe tell me which method is the best to do a Fourier-analysis? Thank you in advance Celine Ide Ghent University Evolutionary Morphology of Vertebrates KL Ledeganckstraat 35 B- 9000 Ghent Belgium +32 92645220 [EMAIL PROTECTED] -- Replies will be sent to the list. For more information visit http://www.morphometrics.org
