phyloDesign: Compute design matrix for least squares analyses
Description
Primarily an internal function for optim.phylo.ls
, thisi function creates a design matrix for least squares phylogenetic analysis.Details
This function returns a matrix containing the edges in the tree (in columns) and pairs of tip node numbers (in rows). Values in the matrix are either 1
if the edge is on the shortest path between the two tips; and 0
otherwise. Probably do not use unless you know what you're doing.References
Revell, L. J. (2012) phytools: An R package for phylogenetic comparative biology (and other things). Methods Ecol. Evol., 3, 217-223.