I had assigned landmarks to a group of specimen images (lizard heads) in tpsDIG and stored them as a .TPS file. I later wished to add a few more samples (of specimens from other locations, images photographed by others that were sent to me via mail) so I added the same landmarks in the same order and appended the new specimens to my existing .tps file.
However, after applying a Generalized Procrustes Analysis (gpagen function in Geomorph package), when I generate a PCA plot, I get the new samples as outliers. I am quite positive that the newly acquired specimens should not be so different from the data I already had. Is there anything I am doing wrong? To my understanding, the images being taken by different sources should not matter because gpagen function transforms all the landmarks orientations to represent only shape data. -- MORPHMET may be accessed via its webpage at http://www.morphometrics.org --- You received this message because you are subscribed to the Google Groups "MORPHMET" group. To unsubscribe from this group and stop receiving emails from it, send an email to morphmet+unsubscr...@morphometrics.org.
