NDescendants() counts the number of nodes (including leaves) directly
descended from each node in a 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
CladeSizes() for the count of descendant leaves (rather than direct
children) at each node.
Other tree navigation:
AncestorEdge(),
CladeSizes(),
DescendantEdges(),
EdgeAncestry(),
EdgeDistances(),
ListAncestors(),
MRCA(),
MatchEdges(),
NodeDepth(),
NodeNumbers(),
NodeOrder(),
PaintTree(),
RootNode()
Examples
tree <- CollapseNode(BalancedTree(8), 12:15)
NDescendants(tree)
#> [1] 5 3 2
plot(tree)
nodelabels(NDescendants(tree))
