MRCA
Most Recent Common Ancestor (MRCA) of 2 or more nodes.
MRCA(phy, ...) ## S4 method for signature 'phylo4' MRCA(phy, ...) ## S4 method for signature 'phylo' MRCA(phy, ...)
phy |
a phylogenetic tree in phylo4, phylo4d or phylo format. |
... |
a vector of nodes |
Given some nodes (i.e., tips and/or internal), this function returns the node corresponding to the most recent common ancestor.
If phy is a phylo4 or phylo4d object, the
nodes can contain both numeric or character values that will be
used by getNode to retrieve the correct node. However, if
phy is a phylo object, the nodes must be a numeric
vector.
With phylo4 and phylo4d objects, if a single node is
provided, it will be returned.
the node corresponding to the most recent common ancestor
data(geospiza) MRCA(geospiza, 1, 5) MRCA(geospiza, "fortis", 11) MRCA(geospiza, 2, 4, "fusca", 3) geo <- as(geospiza, "phylo") MRCA(geo, c(1,5))
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