Re: [R-sig-phylo] testing for correlates of rates of evolution

2013-03-12 Thread Sébastien Lavergne
Hi there, My one-euro contribution. Another approach can be the following one: -you rescale the branch lenghts of your tree while keeping its topology constant based on the pairwise (triangular) matrix of range size differences (or range overlaps, whatever metric you choose). This tree rescaling

Re: [R-sig-phylo] testing for correlates of rates of evolution

2013-03-12 Thread Rob Lanfear
Hi All, I have simpler, probably worse, and possibly useless suggestion. You could borrow from the rates of molecular evolution literature to do this. We often want to answer exactly these kinds of question, where the dependent variable is the rate of evolution, rather than range size. So,

Re: [R-sig-phylo] testing for correlates of rates of evolution

2013-03-12 Thread Liam J. Revell
I did a little further exploration of this proposed method - the results discussion are here: http://blog.phytools.org/2013/03/investigating-whether-rate-of-one.html Maybe this will be of some help in deciding the best approach to go forward with. All the best, Liam Liam J. Revell,