Dear ALL, I have a number of questions about the geomorph R package, that I will post here in separate messages.
First one concerns Principal Components Analysis, using the plotTangentSpace routine. It requires a 3D matrix as argument, however my data (on fishes) are 2D and I could not figure out how to convert my data to the required format; the explanation of the arrayspecs routine in the "Quick Guide to Geomorph" was not clear for me (and it lacks a workin exemple). My data are read from a NTSYSpc file containing 2D coordinates for 10 landmarks for a number of fish specimens, using the readland.nts routine. I have been able to perform a PCA on these data using the shapepca routine in Ian Dryden's shapes R package, but would like to perfom the entire analysis using geomorph. Thanks in advance for any hints! Best regards, -- Dr. Mauro J. Cavalcanti E-mail: mauro...@gmail.com Web: http://sites.google.com/site/maurobio -- 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 morphmet+unsubscr...@morphometrics.org.
