Re: [R-sig-phylo] PGLS - I have more taxa in my data set than in my phylogeny

Dear Anna, My first answer would be to insert the individuals in the phylogeny from the beginning. But: how closely related do you expect the traits of individuals in the same species to be? If you can't answer soundly to this question, my approach would be not meaningful. What PGLS need is a

Re: [R-sig-phylo] null model to trait evolution

Hi Viviane, If you believe that your traits are correlated - that is there is a variance-covariance matrix that describes the evolutionary correlations among these traits, then I don’t think you don't want to fit the models to each trait and transform the tree each time you simulate. You’d be b

[R-sig-phylo] PGLS - I have more taxa in my data set than in my phylogeny

Hello, I want to do a PGLS. The problem is that I have more taxa in my data set then in my phylogeny. The questions are: Are peak frequency and skull length correlated? Are bite force and skull length correlated? Are nasal capsule volume and skull length correlated? I have ten species and eac

[R-sig-phylo] null model to trait evolution

I am investigating patterns of phenotypic overdispersion/clustering in a reginal scale. I am using a set of traits to calculate phenotypic diversity. I need to simulate this set of correlated traits to generate a null model. I would like to know whether the following approach is appropriate: -