ancestors {Oncotree}

Find ancestors within an oncogenetic tree.

Description

ancestors finds all the ancestors of the given vertex within the tree starting from itself up to the root. least.common.ancestor finds the common ancestor of two vertices that is closest to them (and farthest from the root).

Usage

   ancestors(otree, vertex)
   least.common.ancestor(otree, v1, v2)

Arguments

otree

An object of class oncotree.

vertex, v1, v2

Character values giving the names of the nodes.

Value

For ancestors: a character vector giving the names of the ancestors of vertex. The first element is vertex, and the last one is “Root”.

For least.common.ancestor: a character value with the name of the least common ancestor of v1 and v2.

See Also

oncotree.fit

Examples

  data(ov.cgh)
  ov.tree <- oncotree.fit(ov.cgh)
  ancestors(ov.tree, "4q-")
  ancestors(ov.tree, "Xp-")
  least.common.ancestor(ov.tree, "4q-","Xp-")  #"5q-"