Hello,
I am trying to understand two things about a trait-
a. the likely process of how a trait is evolving (constant
rate/constrained/accelerating rate), and
b. which explanatory factors are associated with the trait, via PGLS
What I think I know so far-
1. that something aberrant happens with the trait on a few clades, for
which a multi-optima OU model provides better fit (with good biological
justification)
2. I have a hunch about the process in the rest of the clades say,
evolution with accelerating rate
My question is- can I remove the aberrant clades after fitting a
multi-OU model and perform a PGLS for the rest of the clades? Is it
using the data twice and over-fitting?
Saurabh
--
Saurabh Mahajan
Research Scholar/Graduate Student
Deepa Agashe's Lab
National Center for Biological Sciences
Bengaluru 560065
INDIA
Ph: +91 80 2366 6504
Mobile: +918050001886
Email: saurabh...@gmail.com
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