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)

Arguments

x

A tree of class phylo, its $edge property, or a list thereof.

includeAncestor

Logical specifying whether to count edge leading to ancestral node in calculation of order.

internalOnly

Logical specifying whether to restrict to results to internal nodes, i.e. to omit leaves. Irrelevant if includeAncestor = FALSE.

Value

NodeOrder() returns an integer listing the order of each node; entries are named with the number of each node.

Author

Martin R. Smith (martin.smith@durham.ac.uk)

Examples

tree <- CollapseNode(BalancedTree(8), 12:15)
NodeOrder(tree)
#>  [1] 1 1 1 1 1 1 1 1 5 4 3
plot(tree)
nodelabels(NodeOrder(tree, internalOnly = TRUE))