Understanding Morphologika

2010-03-03 Thread morphmet
Original Message Subject: Understanding Morphologika Date: Wed, 3 Mar 2010 09:41:33 + From: a.vanhete...@roehampton.ac.uk To: morphmet_modera...@morphometrics.org Dear Colleagues I have two unrelated issues, for which I don’t

Re: Understanding Morphologika

2010-03-03 Thread Dennis E. Slice
w.r.t. problem 2. The curvature of shape space, itself, introduces some purely geometric variation that is picked up by PCA. For 2D, you expect to lose 4 dimensions of variation. In fact, you get three exactly zero eigenvalues and one very, very small one. The latter (usually, but I can

tpsRegr and semilandmarks

2010-03-03 Thread morphmet
Original Message Subject: tpsRegr and semilandmarks Date: Wed, 3 Mar 2010 13:00:33 -0500 From: Ben Wasserman ben.a.wasser...@duke.edu To: morphmet@morphometrics.org Hello, I am investigating the relationship between geometric morphometrics and feeding performance in two