ape (version 1.9-1)

mrca: Find Most Recent Common Ancestors Between Pairs

Description

This function returns for each pair of tips (and nodes) its most recent common ancestor (MRCA).

Usage

mrca(phy, full = FALSE)

Arguments

phy
an object of class "phylo".
full
a logical indicating whether to return the MRCAs among all tips and nodes (if TRUE); the default is to return only the MRCAs among tips.

Value

  • a matrix of mode numeric.

Details

The diagonal is set to the number of the tips (and nodes if full = TRUE).

If full = FALSE, the colnames and rownames are set with the tip labels of the tree; otherwise the numbers are given as names.