Hi all,
I'm curious to know whether there is a function for evolving discrete character
data onto a non-ultrametric tree. I know sim.char() can technically produce
output given a non-ultrametric tree, and the documentation does not specify
that it is a requirement, but all the example trees I have seen applied with
this function are ultrametric.
What are the consequences of using sim.char() or similar functions on a tree
generated by something like rtree(), rather than rcoal() or sim.bdtree()? Are
there ways to make equivalencies, as through some kind of regression or
transformation?
Thanks!
~John
John S. S. Denton, Ph.D.
Department of Vertebrate Paleontology
American Museum of Natural History
www.johnssdenton.com
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