Calculates the most recent common ancestor for each pair of tips. Used internally by getEventData
Usage
getmrca(phy, t1, t2)
Arguments
phy
an object of class phylo.
t1
a vector of mode integer or character corresponding to tips in phy.
t2
a vector of mode integer or character corresponding to tips in phy.
Value
A vector of node numbers of the common ancestor for each pair of tips.
Details
Finds the most recent common ancestor for each pair of tips where pairs are
defined as (t1[1], t2[1]), (t1[2], t2[2]), ... , (t1[i], t2[i]), ... ,(t1[n], t2[n]).