descendants: Descendants of an Internal Node in a Phylogeny
In fmichonneau/phyloch: Tools for phylogenetics and taxonomy

Description Usage Arguments Value Author(s) See Also Examples

For any given internal node of a phylogeny, the function returns a vector containing the node numbers descending from that node.

1	descendants(phy, node, type = "t", ignore.tip = TRUE, labels)

`phy`	an object of class `phylo`.
`node`	an integer giving the number of the internal node.
`type`	a character string, may be `"terminal"`, `"internal"`, `"both"`, or any unambiguous abbreviation of these.
`ignore.tip`	logical, if `ignore.tip = FALSE`, the function will issue an error when `node` is not internal, otherwise the number of the corresponding terminal node will be returned.
`labels`	logical, determines if node labels are returned instead of node number, currently ignored unless `type = "t"`.

A vector containing terminal node numbers or tip labels.

Christoph Heibl

sister, noi

 # generate a random tree with 12 terminal and 11 internal nodes:
 tree <- rtree(12)
 
 # get the descendants of internal node 15:
 x <- descendants(tree, 15)