Computes the joint likelihood of Pagel's \(\lambda\) parameter.
likMlambda(lambda, X, C)scalar, usually on the interval 0,1 (although not required to be).
data for various continuous character, in the form of a matrix.
n x n matrix (for n taxa) containing the height above the root for each pair of taxa in the tree (e.g., vcv.phylo).
The log-likelihood.
Generally intended to be used internally by other methods that do joint optimization of \(\lambda\) (e.g., phyl.pca).
Revell, L. J. (2012) phytools: An R package for phylogenetic comparative biology (and other things). Methods Ecol. Evol., 3, 217-223.