----- Forwarded message from "SANTOS SANTOS, JAVIER" -----
Date: Wed, 24 Oct 2012 12:43:23 -0400
From: "SANTOS SANTOS, JAVIER"
Reply-To: "SANTOS SANTOS, JAVIER"
Subject: Ontogentic shape comparison
To: [email protected]
Hello morphometricians,
I am comparing ontogenetic shapes in two species of Lake Victoria
cichlids in MorphoJ (2D). I want to compare shape differences at each
ontogenetic stage. My question lies in what would be the better option
to compare the shapes visually (so for a illustration), and I would
like to know which of these two options you think is best to do so:
(1) Do a PCA in MorphoJ for each species at a given ontogenetic stage.
Then compare the consensus configuration for each. Or (2) Do the same
PCA and then compare both shapes at a determined scale factor (i.e.
0.1). Or (3) Do a combined PCA and then compare the shapes obtained
with a negative scale factor (where one species is located) and with a
positive scale factor (where the other species is located).
Thanks in advance for your advice.
Cheers,
Javier Santos Santos
[email protected]
Collaborator @ Department of Biodiversity and Evolutionary Biology
- Museo Nacional de Ciencias Naturales (MNCN-CSIC)
Associated Researcher @ Evolutionary Morphology of Vertebrates
- Universiteit Gent
----- End forwarded message -----
