Dear all,
I want to test for a relationship between interspecific rates of evolution
and a continuous predictor variable. I didn't want to use species pairs
because they end up looking a lot of information. The method implemented in
Colevol is very elegant, but is computationally unfeasible with
One way to do it with pGLS and root to tip path length may be to include
the number of nodes along a root to tip path as a control for node density
effects (maybe with some transformation). I don't know how well that will
work, but I am also experimenting with similar questions.
Another way is to
