Re: [R-sig-phylo] Model-Selection vs. Finding Models that Fit Well

2011-01-28 Thread David Bapst
Hello all, Apologies for leaving the replies to get cold for a week, but now I finally have some time to respond. On Thu, Jan 20, 2011 at 12:17 PM, Brian O'Meara omeara.br...@gmail.com wrote: I think considering model adequacy is something that would be useful to do and is not done much now.

Re: [R-sig-phylo] Model-Selection vs. Finding Models that Fit Well

2011-01-28 Thread Florian Boucher
Hi David and list, just a quick comment on one of your questions : for quantitative traits on a phylogeny you can compare your best model to the white noise model implemented in geiger, which assumes that your traits are drawn from a normal distribution. This last model would be the baseline

Re: [R-sig-phylo] Simulate discrete characters on tree constrained to phylogenetic signal K

2011-01-28 Thread Emmanuel Paradis
On Fri, 28 Jan 2011 17:20:57 -0600 Scott Chamberlain myrmecocys...@gmail.com wrote: Dear R community, I would like to simulate discrete characters on a randomly generated tree. However, I would like to create different sets of trees and associated characters at certain levels of phylogenetic