Hello
I would very much appreciate if someone can help me with this one. I
wish to compare two additive trees that are identical for some but
not all the clades.
So I use rtree of the ape package with, say, 10 tips to generate
tree "A". Then I wish to
Dear all
I am currently analysing a set of traits from different species - let's say
brain size and body mass - using a tree where branch lengths were set
artificially (after Graphen) as the length was not available.
I calculate phylogenetic independent contrasts (PIC) using the package caper
Hi Karin.
gls(...,correlation=corPagel(...,fixed=F),method=ML) and
pgls(...,lambda=ML) should produce the same result unless one or the
other is not optimizing properly or unless different bounds on the
fitted model parameters (in particular, lambda) are used.
To show this to yourself, you
