-------- Original Message --------
Subject: quantifying differences
Date: Tue, 24 Mar 2009 03:55:57 -0700 (PDT)
From: JACQUIER Anouchka <[email protected]>
To: [email protected] <[email protected]>
Hi everyone!
I'm still working on my 3D models of fishes. I have 68 homologous
landmarks on them and I have the correct format to enter my data in IMP
and Morphologika.
I'm trying now to compare my specimens. I wanted to show that two
species would be closer morphologically (eventhough separated
genetically = convergence case) than they are to their close genetically
related parents.
I wanted to compare their CS and Procrustes distance, but because they
are not the same size it gets difficult. I have centroid size which are
very different eventhough my specimens are really similar morphologically.
Do you have any idea what kind of statistical test I could use and which
program is required. And do you know how to eliminate the effect on size
and only keep the effect of shape in my calculation, which is really all
that matters in my case.
I hope you will understand this rather complicated e-mail and hope also
that someone will be able to help me!
Thanks
Anouchka
Anouchka Jacquier
Master Student
Switzerland
e-mail: [email protected]
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