I want to use several methods to estimate the age of nodes in a phylogeny. I plan on using Ape's
chronos function that relies on a penalized likelihood method (Sanderson 2002), but I also would like to test the NPRS method (Non Parametric Rate Smoothing, Sanderson 1997). I read some tutorial where they say it's in the
chronogram function, but I see no such function in Ape v4.1. Where is it? Was it removed?