Re: [R-sig-phylo] Phylogenetic Signal in Internal Node Data

Hi Matt, You can think about a randomization procedure: rTraitDisc(), rTraitCont(), and rTraitMult() all have the option 'ancestor' to output the values of a trait simulated along a phylogeny for all terminal and internal nodes. HTH Best, Emmanuel - Le 27 Jan 21, à 0:42, Matthew Helmus

Re: [R-sig-phylo] Phylogenetic Signal in Internal Node Data

I can think of a kludge approach for a single trait. Use Felsenstein's phylogenetically independent contrasts. Work down from the tips, calculating the internal nodes as specified by the algebra of the method. Stop when you get to a set of nodes of interest. Use the methods in Blomberg et al.

[R-sig-phylo] Phylogenetic Signal in Internal Node Data

Hello, Is there a method that can test for phylogenetic signal in data associated with the internal nodes of a tree rather than data associated with tree tips? Thank you! Matt -- Matthew R. Helmus, Ph.D. Integrative Ecology Lab