[R-sig-phylo] mixing trait values from distinct models of evolution to reconstruct null morphospace

2018-12-16 Thread françois RIGAL
Hi all I have a conceptual question related to the use of separate models of evolution to reconstruct a morphospace. Ok let’s consider that I have 6 endemic species on an island-like habitats for which I have morphological traits. I want to generate a null expectation for the morphospace of

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

2018-12-16 Thread Marguerite Butler
Aloha Danielle, There is no reason at all (mathematically) why you canʻt run non-ultrametric trees. ouch has ever been limited this way in its functions, and it also does not require bifurcating trees. Our original comment was that in most cases people will want to interpret their results in

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

2018-12-16 Thread Danielle Miller
First, I would like to thank all for your replies. Second, I have a tree constructed of many viral genome sequences. I use midpoint rooting in order to run the model on a rooted tree (not using outgroup) and do not have three ways splits. I’ve probably read this in a paper mentioning that in