init.parsimonyCost: Initialization for parsimonyCost.
Description
init.parsimonyCost
initialize a (ntaxa + Nnode) x (nclus) matrix with
NAs everywhere, except for the tips.
Usage
init.parsimonyCost(phy, clusters)
Value
A (ntaxa + Nnode)x(nclus) matrix, with ntaxa first lines initialized as
described.
Arguments
- phy
a phylogenetic tree, class phylo
.
- clusters
the vector of the clusters of the tips.
Details
At a tip i in state k, the line-vector is initialized as follow :
(1 - Ind(k=p)_{1<=p<=nclus})*Inf (where Inf * 0 = 0)