vcv.phylo: Phylogenetic Variance-covariance or Correlation Matrix
Description
This function computes the expected variances and covariances of a
continuous phenotype assuming it evolves under a given model
(currently only the model of Brownian motion is available).Usage
vcv.phylo(phy, model = "Brownian", cor = FALSE)
Value
a numeric matrix with the names of the tips (as given by the tip.label
of the argument phy
) as colnames and rownames.References
Garland, T. Jr. and Ives, A. R. (2000) Using the past to predict the
present: confidence intervals for regression equations in phylogenetic
comparative methods. American Naturalist, 155, 346--364.See Also
read.tree
to read tree files in Newick format