Dear all,
I was trying to find the pylogenetic signal for a trait and I used
phylosig():
phylosig(tree, trait, method="lambda", test=TRUE, nsim=999)
If I use, for instance, a lambda correlation in a gls, am I expected to
obtain the same value?
gls(trait~var1+var2, corPagel(value=1,phy=tree,fixed=F)...)
Is the lambda estimated for a model the same as the one calculated for a
trait alone? If I have a different result, what's it due to?
Thanks in advance.
--
Com os melhores cumprimentos,
Sérgio Ferreira Cardoso.
--------------------
Best regards,
Sérgio Ferreira Cardoso
MSc. Paleontology
Museu da Lourinhã, GEAL.
LATR/IST/CTN - Campus Tecnológico e Nuclear.
Lisboa, Portugal
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