Hi Russell, There are several implementations of LTT plots among several packages, so the details certainly differ depending on which one(s) you use.
Maybe you can use the ape function ltt.plot.coords() which returns a matrix with 2 columns giving the number of lineages for each node time of the tree. I guess you'll need to do a bit of programming to combine the different outputs from different trees. Best, Emmanuel ----- Le 27 Oct 23, à 8:05, Russell Engelman <neovenatori...@gmail.com> a écrit : > Dear R-Sig-Phylo, > I was wondering if there was any way to color-code a lineage-through-time > plot, > to highlight the proportion of taxa at specific intervals that belong to a > particular clade. I.e., an LTT plot of tetrapod diversity through time, and I > want to highlight the number of lineages at any one point in time that are > chondrichthyans, sarcopterygians, lissamphibians, etc. (see attached fig. as > an > example). I figured I can do this by asking R to return all lineages that are > descendants of a specific node, but am not sure what functions I can use to > convert the dated tree into an object that can be read into ggplot. > Sincerely, > Russell > _______________________________________________ > R-sig-phylo mailing list - R-sig-phylo@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-phylo > Searchable archive at http://www.mail-archive.com/r-sig-phylo@r-project.org/ [[alternative HTML version deleted]] _______________________________________________ R-sig-phylo mailing list - R-sig-phylo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-phylo Searchable archive at http://www.mail-archive.com/r-sig-phylo@r-project.org/
