Hi Manabu & Belinda,
In fact, the (homogeneous) OU process makes the data look like with no
phylogenetic correlation since the covariance between species decreases
exponentially with time and the value of alpha. I think the two
situations (a trait not evolving on a phylogeny and following a no
I wanted to second Jacob Berv's suggestions about Bayes Factors for testing
apriori hypotheses about tree topology. Here are two papers that show worked
out examples of this approach, and discuss some of the checks you need to do
before proceeding. For example, you want to be sure the character
Hi Belinda,
Sorry to jump in on this a bit late, but I thought maybe we need to step
back to basics first?
Since lambda=~0, this indicates strongly that your data has almost no
phylogenetic signal; most of the variation in data is at the tips = noisy
with respect to phylogeny.
In which case, I fi
