Description

RootNode() identifies the root node of a (rooted or unrooted) phylogenetic tree. Unrooted trees are represented internally by a rooted tree with a polytomy at the root.

Usage

Arguments

Value

RootNode() returns an integer denoting the root node for each tree. Badly conformed trees trigger an error.

Author(s)

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

See Also

Test whether a tree is rooted: TreeIsRooted()

phangorn::getRoot()

Other tree navigation: AncestorEdge(), CladeSizes(), DescendantEdges(), EdgeAncestry(), EdgeDistances(), ListAncestors(), MRCA(), NDescendants(), NodeDepth(), NodeOrder(), NonDuplicateRoot()

Examples