Re: [R-sig-phylo] Using Phylogenetic Signal

2017-10-09 Thread Theodore Garland
Hi Will, What you are observing is people falling into the "classic comic books" version of statistical analyses, i.e., something is either "significant" or "non-significant" based on some arbitrary cutoff of, say, alpha = 0.05. Both of the statistics you mention are, of course, continuously value

[R-sig-phylo] Using Phylogenetic Signal

2017-10-09 Thread William Gelnaw
Hi Everyone, I'm measuring phylogenetic signal in a morphometric dataset using Pagel's Lambda and Blomberg's K. I tend to think of both of these as continuous values, but in reviewing the literature I've noticed that most authors treat phylogenetic signal as either there or not. The way that th