Internal function for phyl.pca and others.
lambda.transform(lambda, C)Typically an among-species phylogenetic variance covariance matrix (e.g., vcv.phylo) in which the off-diagonal elements have been multiplied by lambda.
scalar, usually (but not necessarily) on the interval 0,1.
matrix probably returned by vcv.phylo.
Liam Revell liam.revell@umb.edu
Multiplies the off-diagonals of a square matrix by lambda and returns the result.
Revell, L. J. (2012) phytools: An R package for phylogenetic comparative biology (and other things). Methods Ecol. Evol., 3, 217-223.