Skip to contents

Count descendants for each node in a tree

Source: R/tree_descendants.R
NDescendants.Rd

NDescendants() counts the number of nodes (including leaves) directly descended from each node in a tree.

Usage

NDescendants(tree)

Arguments

tree

A tree of class phylo.

Value

NDescendants() returns an integer listing the number of direct descendants (leaves or internal nodes) for each node in a tree.

See also

Other tree navigation: AncestorEdge(), CladeSizes(), DescendantEdges(), EdgeAncestry(), EdgeDistances(), ListAncestors(), MRCA(), MatchEdges(), NodeDepth(), NodeNumbers(), NodeOrder(), RootNode()

Author

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

Examples

tree <- CollapseNode(BalancedTree(8), 12:15)
NDescendants(tree)
#> [1] 5 3 2
plot(tree)
nodelabels(NDescendants(tree))