pruningwise.distFromRoot: Calculates node distance from the root in
an "pruningwise" tree
Description
Calculates the distance from the root to all nodes, in
a tree whose internal representation is in "pruningwise" order.
Usage
pruningwise.distFromRoot(phy)
Arguments
phy
a phylogenetic tree of type phylo with branch
lengths, already in "pruningwise" order.
Value
a vector of distances, with the original tip labels and internal node names if
internal node names were available, or otherwise named by the node numbers
in phy.