Find Most Recent Common Ancestors Between Pairs
This function returns for each pair of tips (and nodes) its most recent common ancestor (MRCA).
mrca(phy, full = FALSE)
- an object of class
- 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.
The diagonal is set to the number of the tips (and nodes if
full = FALSE, the colnames and rownames are set with the tip
labels of the tree; otherwise the numbers are given as names.
- a matrix of mode numeric.