NodeOrder() calculates the number of edges incident to each node in a tree.
Includes the root edge in rooted trees.
NodeOrder(x, includeAncestor = TRUE, internalOnly = FALSE)
A tree of class
$edge property, or a list thereof.
Logical specifying whether to count edge leading to ancestral node in calculation of order.
Logical specifying whether to restrict to results
to internal nodes, i.e. to omit leaves. Irrelevant if
includeAncestor = FALSE.
NodeOrder() returns an integer listing the order of each node;
entries are named with the number of each node.