init.incidence.matrix {PhylogeneticEM} | R Documentation |
Initialization for incidence matrix
Description
init.incidence.matrix
initialize the matrix updated in
update.incidence.matrix
for the computation of the incidence matrix
in incidence.matrix
.
Usage
init.incidence.matrix(phy)
Arguments
phy |
Input tree. |
Details
The initialized matrix has ntaxa column and Nnode rows. Each node represent its parental branch. A row corresponding to a tip i is initialized to a vector of zeros, with only entry i equal to one. (Branch ending at tip i is only in the i^th lineage)
Value
Matrix with Nnode rows and ntaxa column.
[Package PhylogeneticEM version 1.7.0 Index]