Method: Bio::Tree#ancestors

Defined in:
lib/bio/tree.rb

#ancestors(node, root = nil) ⇒ Object

Gets all ancestral nodes of the node. If root isn’t specified or root is nil, @root is used. Returns an array of Nodes. The result is unspecified for cyclic trees.



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# File 'lib/bio/tree.rb', line 757

def ancestors(node, root = nil)
  root ||= @root
  (self.path(root, node) - [ node ]).reverse
end