Dear list, I am now browsing through a large phylogeny trying to select species for multilocus analysis. I am, of course, constrained at least by availability of material and thus I cannot pick a purely random subset of species. Therefore, I would like to know how much is any particular selection non-random (with implications for subsequent analyses). In an ideal random sampling the picks are completely independent - if you know that some species was sampled it tells you nothing about sampling of any other species. In fact I need to know whether branches retained after sampling are on the original phylogeny predictably separated by the dropped branches. If sampling is random (or close to complete), there is no regularity in distribution of dropped branches. Otherwise, some pattern is (at least theoretically) recognizable - e.g. in diversified sampling they tend to be closer to tips, in other cases they may be preferably in some clades.
Does any measure of this kind exist (ideally implemented in R)? Best wishes, Ondrej Mikula -- Ondřej Mikula Institute of Animal Physiology and Genetics Academy of Sciences of the Czech Republic Veveri 97, 60200 Brno, Czech Republic Institute of Vertebrate Biology Academy of Sciences of the Czech Republic Studenec 122, 67502 Konesin, Czech Republic [[alternative HTML version deleted]] _______________________________________________ R-sig-phylo mailing list - Rfirstname.lastname@example.org https://stat.ethz.ch/mailman/listinfo/r-sig-phylo Searchable archive at http://email@example.com/