Module: TreeRemoveNodeMutator

Defined in:
lib/charlie/tree/tree.rb

Overview

replaces a random node by one of its children. does nothing if the randomly chosen node is a terminal.

Instance Method Summary collapse

Instance Method Details

#mutate! ⇒ Object 



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# File 'lib/charlie/tree/tree.rb', line 225

def mutate!
  st = random_subtree
  return self if st.first==:term
  st.replace st[1..-1].at_rand
  self
end