geneticengine.representations.tree.treebased
============================================

.. py:module:: geneticengine.representations.tree.treebased


Attributes
----------

.. autoapisummary::

   geneticengine.representations.tree.treebased.T


Classes
-------

.. autoapisummary::

   geneticengine.representations.tree.treebased.TreeBasedRepresentation


Functions
---------

.. autoapisummary::

   geneticengine.representations.tree.treebased.random_node
   geneticengine.representations.tree.treebased.random_tree
   geneticengine.representations.tree.treebased.get_weighted_nodes
   geneticengine.representations.tree.treebased.find_in_tree
   geneticengine.representations.tree.treebased.mutate
   geneticengine.representations.tree.treebased.tree_mutate
   geneticengine.representations.tree.treebased.tree_crossover


Module Contents
---------------

.. py:data:: T

.. py:function:: random_node(random, grammar, starting_symbol, decider)

.. py:function:: random_tree(random, grammar, decider)

.. py:function:: get_weighted_nodes(e)

.. py:function:: find_in_tree(ty, o)

.. py:function:: mutate(global_context, i, ty, dependent_values = None, source_material = None)

   Generates all nodes that can be mutable in a program.


.. py:function:: tree_mutate(r, g, i, target_type, decider)

.. py:function:: tree_crossover(r, g, p1, p2, decider)

   Given the two input trees [p1] and [p2], the grammar and the random
   source, this function returns two trees that are created by crossing over.

   [p1] and [p2].

   The first tree returned has [p1] as the base, and the second tree
   has [p2] as a base.


.. py:class:: TreeBasedRepresentation(grammar, decider)

   Bases: :py:obj:`geneticengine.representations.api.Representation`\ [\ :py:obj:`geneticengine.solutions.tree.TreeNode`\ , :py:obj:`geneticengine.solutions.tree.TreeNode`\ ], :py:obj:`geneticengine.representations.api.RepresentationWithMutation`\ [\ :py:obj:`geneticengine.solutions.tree.TreeNode`\ ], :py:obj:`geneticengine.representations.api.RepresentationWithCrossover`\ [\ :py:obj:`geneticengine.solutions.tree.TreeNode`\ ]


   This class represents the tree representation of an individual.

   In this approach, the genotype and the phenotype are exactly the
   same.


   .. py:attribute:: grammar


   .. py:attribute:: decider


   .. py:method:: create_genotype(random, **kwargs)


   .. py:method:: genotype_to_phenotype(genotype)


   .. py:method:: mutate(random, genotype, **kwargs)


   .. py:method:: crossover(random, parent1, parent2, **kwargs)