init.enumerate_parsimony: Initialization for the enumeration of parsimonious solutions.
Description
init.enumerate_parsimony is used in function enumerate_parsimony,
and initialize the correct data structure.
Usage
init.enumerate_parsimony(phy, clusters, pos)
Arguments
phy
Input tree.
clusters
a vector representing the group of each tip.
Value
A list of size nNode + ntaxa, as described above.
Details
This function returns a list with nNodes + ntaxa entries. Entries correponding to
the tips are initialized with a list of nclus matrices. For tip i of group k, all
matrices are set to NULL, exept for the kth, set to a vector of size
nNodes + ntaxa, with entry i set to k, and all the others to NA.
