Re: [R-sig-phylo] Why no branch lengths on consensus trees?

2012-11-22 Thread Joe Felsenstein
Emmanuel Paradis wrote: > If you are Bayesian, the trees sampled from an MCMC are here for estimation > including of the branch lengths, so you use them to compute some sort of > consensus topology as well as its branch lengths. So it makes sense that > MrBayes can do a consensus tree with bra

Re: [R-sig-phylo] PC method to test for significant inter-species differences of a given trait

2012-11-22 Thread Daniel Lang
Hi again, Gwennael Bataille already kindly suggested the use of ade4's variance.phylog or geiger's phy.anova off-list. I just realized that pic.ortho is returning intraspecific contrasts. Could I use those for "normal" anova or posthoc tests? As I am interested in significant pairwise differences

Re: [R-sig-phylo] Why no branch lengths on consensus trees?

2012-11-22 Thread Emmanuel Paradis
Hi Scott, The reason for implementing only the consensus on the topology was after reading the appropriate chapter in "Inferring Phylogenies". So I'm glad that Joe himself stepped in. I have added this reference in the help page (it was already cited in my book with respect to this issue). I

[R-sig-phylo] PC method to test for significant inter-species differences of a given trait

2012-11-22 Thread Daniel Lang
Hi, I'm new to this list and although I spent some time now searching for this issue in the list or other sources, hopefully I haven't overlooked a relevant thread... I am comparing gene structural features (derived from fully sequenced plant genomes (limited taxon sampling)). Based on Emanuel's