This function merges two or mapped states on the tree to get one new state. For instance, one could merge the states "C", "G", and "T" to get the state "not-A".
mergeMappedStates(tree, old.states, new.state)a modified object of class "phylo" or "multiPhylo" with a mapped discrete character.
states to merge.
name for new state.
A modified object of class "phylo" or "multiPhylo".
Revell, L. J. (2012) phytools: An R package for phylogenetic comparative biology (and other things). Methods Ecol. Evol., 3, 217-223.