Dear morphometricians, at present I'm working on some lepidopteran sibling species. Being very difficult to identify these species not only by external features but also by genitalia, I want analize (and quantify) the shape variation of some anatomical parts. I'm asking for help about the better method to compare individuals. I have to compare a sample of (many) undetermined individuals to some specified specimens (typical specimens). Could I employ tpsSplin software to analyse my data? I would use my typical specimens as reference instead of computing it. Is it allowable to make such comparison? I would also know if there is a value that I can employ to quantify the variation among my reference-specimens and the set of data. In the report three values are computed for each specimen. I'm thinking to use only d (Procrustes Distances), or it is better use the three values together (i.e., Bending Energy, Procrustes Distance and angle)? Thank you very much for any suggestion. Angela Roggero
-- Dott. Angela Roggero Dpt. Biologia Animale Via Accademia Albertina 13 I-10123 Torino - ITALY Phone +39 011 670 4536 Fax +39 011 236 4536 www.personalweb.unito.it/angela.roggero/ -- Replies will be sent to the list. For more information visit http://www.morphometrics.org
