Hi Everyone, The following is a fundamental question about interpreting the output from tpsRelw. Using Heidi Schutz' and Jonathan Krieger's "Guide to geometric morphometrics" document. The document suggests saving the 'weight matrix', 'centroid size' (self explanatory) and 'relative warp scores' in separate files. What is not clear to me is what the weight matrix and relative warp scores files contain. Is it the partial warp score and PCA analyses respectively? I have the understanding that the relative warp scores are a synonym for the PCA analyses that tpsRelw carries out automatically (the difference being that they are PC scores weighted by the bending energy corresponding to each partial warp).
Am I interpreting this correctly and what would be the next logical steps in analyzing the data in these files? I am primarily looking to examine differences in body shape between two populations and also ontogenetic (age-specific) body shape variation within populations. Any help or directions to additional explanations would be appreciated. Daniel Svozil PhD candidate - Charles Sturt University -- MORPHMET may be accessed via its webpage at http://www.morphometrics.org To unsubscribe from this group and stop receiving emails from it, send an email to [email protected].
