-------- Original Message --------
Subject: Slide method and RWs
Date: Tue, 8 Sep 2009 07:29:48 -0700 (PDT)
From: Teresa Militão <[email protected]>
To: [email protected]
Hello, everybody!
I'm using the geometric morphometric analysis to know if there are any
differences in beak's shape between two species. For determine the
beak's shape I’m using 10 landmarks and 3 semilandmarks. However I have
some doubts that I was wondering if you can help me:
1. I'm using the TpsRelw to slide the semilandmarks, however I
don't know which slide method is more appropriated to do it?
2. After sliding the semilandmarks using the Chord - min d2 I had
23 RWs. Theoretically if I have 3 semilandmarks, the last 3 RW should
explain 0% of the variance, right? However I have one (of theses 3 last
RWs) that explain 0,01%. Is it normal? Should I use this RW in further
analysis?
Thank you very much.
Teresa
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