Re: [R-sig-phylo] Using AIC/AICc/BIC to select trait a model of trait evolution

2012-05-02 Thread Joe Felsenstein
Matt Pennell wrote: > My question is: how many observations do we have when we compare trait > evolutionary models? People tend to use the number of tips of taxa for > which we have trait values. However, this may not be technically > accurate. > First, of course, both the branch lengths and th

Re: [R-sig-phylo] Using AIC/AICc/BIC to select trait a model of trait evolution

2012-05-02 Thread Ben Bolker
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12-05-02 12:29 PM, Matt Pennell wrote: > Hi R-sig-phylo readers, > > I have lately been thinking about an issue regarding model > selection in trait evolutionary models and was wondering if anyone > on the list had any insight into this question: >

[R-sig-phylo] Using AIC/AICc/BIC to select trait a model of trait evolution

2012-05-02 Thread Matt Pennell
Hi R-sig-phylo readers, I have lately been thinking about an issue regarding model selection in trait evolutionary models and was wondering if anyone on the list had any insight into this question: It is now commonplace for researchers to use some model selection criterion such as AIC/AICc/BIC to

[R-sig-phylo] ape's web site

2012-05-02 Thread Emmanuel Paradis
Hi all, ape.mpl.ird.fr has been refreshed. Besides the new look, two things worth noting: There is a column section entitled "EVENTS" on the welcome page: it is intended to give information on forthcoming meetings, workshops, courses, seminars, ... If you organize such an event or would like