This function applies the set of branch lengths from a reference tree to a target tree while reconciling any mappings (as in read.simmap) with the new branch lengths.
applyBranchLengths(tree, edge.length)target tree.
number of digits for rounding. Passed to round.
An object of class "phylo" or "simmap".
Revell, L. J. (2012) phytools: An R package for phylogenetic comparative biology (and other things). Methods Ecol. Evol., 3, 217-223.