[R-sig-phylo] correlation between discrete and continuous variables?

A question to the comparative method gurus: I have a phylogeny for a group of plants that repeatedly evolved annuality from perennial ancestors. For each tip in the tree I have characterized the climatic tolerances (e.g. temperature, precipitation, ...) . I would like to assess if there

Re: [R-sig-phylo] correlation between discrete and continuous variables?

Hi Christoph, There was some discussion following a similar question a year ago: The question: https://stat.ethz.ch/pipermail/r-sig-phylo/attachments/20080402/2e2b995e/attachment.pl The threads: https://stat.ethz.ch/pipermail/r-sig-phylo/2008-April/thread.html#35 I'll be interested to hear

Re: [R-sig-phylo] correlation between discrete and continuous variables?

Hi Christoph, Stacey, This might be a problem for which a logistic regression (http://en.wikipedia.org/wiki/Logistic_regression) would be appropriate. If so, I encourage you to check out the following article, which I enjoyed: Ives, A. R., and T. Garland Jr. 2009. Phylogenetic logistic