Wrapper for internal C function root_on_node() — root_on

Direct entry point to root_on_node(); recommended for expert use only. RootTree() checks that input is properly formatted and is recommended for general use.

Usage

root_on_node(phy, outgroup)

Arguments

phy: Minimally, a named list with entries edge and Nnode, in the format of equivalent entries in a tree of class phylo. edge.length will also be considered if supplied.
outgroup: Integer specifying index of leaf or node to set as the outgroup.

Value

root_on_node() returns phy rooted on the specified node.

Author

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