Method: Bio::Tree#add_node

Defined in:
lib/bio/tree.rb

#add_node(node) ⇒ Object

Adds a node to the tree. Returns self. If the node already exists, it does nothing.



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# File 'lib/bio/tree.rb', line 402

def add_node(node)
  _clear_cache
  @pathway.graph[node] ||= {}
  self
end