RRTree is no longer maintained, as better methods for the study of evolutionary rates now exist. You might want to check for more recent methods here, and especially the PAML package.
We will keep the source code and documentation available here, as a service to those who wish still to use RRTree, for any reason.

Source code

If you have problems using RRTree, you can contact me here, but I rarely have time to investigate bugs.
Marc Robinson-Rechavi.
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