This fucntion takes a phylogenetic tree, an average split position, and a raw MCMC output from evol.rate.mcmc and returns a posterior sample of evolutionary rates rootward (\(\sigma(1)^2\)) and tipward (\(\sigma(2)^2\)) from the average split.
posterior.evolrate(tree, ave.shift, mcmc, tips, showTree=FALSE)a phylogenetic tree in "phylo" format.
mean or median shift-point from the posterior sample (see minSplit.
matrix $mcmc from evol.rate.mcmc (probably with burnin excluded).
list of stips in state sig(1)^2 for each sampled generation of MCMC.
optional logical value indicating whether or not to plot the stretched and shrunken tree generated by the pre-processing algorithm implemented in this function (default is FALSE).
A matrix containing the posterior sample of evolutionary rates and shift-points between rates.
Revell, L. J., D. L. Mahler, P. Peres-Neto, and B. D. Redelings (2012) A new method for identifying exceptional phenotypic diversification. Evolution, 66, 135-146.