[R-sig-phylo] mccr test for non ultrametric trees

2012-05-30 Thread pasquale.r...@libero.it
Hi all, I would enquire the list about a simple issue. Is there any method implemented to test for changes in diversification rate as applied to fossil (non- ultrametric) trees?. As far as I understand, the methods so far available work on ultrametric trees (I've inspected laser's

Re: [R-sig-phylo] mccr test for non ultrametric trees

2012-05-30 Thread David Bapst
Pasquale- This isn't a feasible solution, because the branch lengths of a paleo-tree are a function of birth, death and sampling rates. I'll be discussing work that Matt Pennell, Emily King and I have been doing relating to this issue next month at Evolution. -Dave On Wed, May 30, 2012 at 8:23