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Evolutionary Tools
==================
.. automodule:: deap.tools
.. _operators:
Operators
---------
The operator set does the minimum job for transforming or selecting
individuals. This means, for example, that providing two individuals to the
crossover will transform those individuals in-place. The responsibility of
making offspring(s) independent of their parent(s) and invalidating the
fitness is left to the user and is generally fulfilled in the algorithms by
calling :func:`toolbox.clone` on an individual to duplicate it and
``del`` on the :attr:`values` attribute of the individual's fitness to
invalidate it.
Here is a list of the implemented operators in DEAP,
============================ =========================================== ========================================= ========================================= ================
Initialization Crossover Mutation Selection Migration
============================ =========================================== ========================================= ========================================= ================
:func:`initRepeat` :func:`cxOnePoint` :func:`mutGaussian` :func:`selTournament` :func:`migRing`
:func:`initIterate` :func:`cxTwoPoint` :func:`mutShuffleIndexes` :func:`selRoulette` ..
:func:`initCycle` :func:`cxUniform` :func:`mutFlipBit` :func:`selNSGA2` ..
.. :func:`cxPartialyMatched` :func:`mutPolynomialBounded` :func:`selNSGA3` ..
.. :func:`cxUniformPartialyMatched` :func:`mutUniformInt` :func:`selSPEA2` ..
.. :func:`cxOrdered` :func:`mutESLogNormal` :func:`selRandom` ..
.. :func:`cxBlend` .. :func:`selBest` ..
.. :func:`cxESBlend` .. :func:`selWorst` ..
.. :func:`cxESTwoPoint` .. :func:`selTournamentDCD` ..
.. :func:`cxSimulatedBinary` .. :func:`selDoubleTournament` ..
.. :func:`cxSimulatedBinaryBounded` .. :func:`selStochasticUniversalSampling` ..
.. :func:`cxMessyOnePoint` .. :func:`selLexicase` ..
.. .. .. :func:`selEpsilonLexicase` ..
.. .. .. :func:`selAutomaticEpsilonLexicase` ..
============================ =========================================== ========================================= ========================================= ================
and genetic programming specific operators.
================================ =========================================== ========================================= ================================
Initialization Crossover Mutation Bloat control
================================ =========================================== ========================================= ================================
:func:`~deap.gp.genFull` :func:`~deap.gp.cxOnePoint` :func:`~deap.gp.mutShrink` :func:`~deap.gp.staticLimit`
:func:`~deap.gp.genGrow` :func:`~deap.gp.cxOnePointLeafBiased` :func:`~deap.gp.mutUniform` :func:`selDoubleTournament`
:func:`~deap.gp.genHalfAndHalf` :func:`~deap.gp.cxSemantic` :func:`~deap.gp.mutNodeReplacement` ..
.. .. :func:`~deap.gp.mutEphemeral` ..
.. .. :func:`~deap.gp.mutInsert` ..
.. .. :func:`~deap.gp.mutSemantic` ..
================================ =========================================== ========================================= ================================
Initialization
++++++++++++++
.. autofunction:: deap.tools.initRepeat
.. autofunction:: deap.tools.initIterate
.. autofunction:: deap.tools.initCycle
.. autofunction:: deap.gp.genFull
.. autofunction:: deap.gp.genGrow
.. autofunction:: deap.gp.genHalfAndHalf
.. autofunction:: deap.gp.genRamped
Crossover
+++++++++
.. autofunction:: deap.tools.cxOnePoint
.. autofunction:: deap.tools.cxTwoPoint
.. autofunction:: deap.tools.cxTwoPoints
.. autofunction:: deap.tools.cxUniform
.. autofunction:: deap.tools.cxPartialyMatched
.. autofunction:: deap.tools.cxUniformPartialyMatched
.. autofunction:: deap.tools.cxOrdered
.. autofunction:: deap.tools.cxBlend
.. autofunction:: deap.tools.cxESBlend
.. autofunction:: deap.tools.cxESTwoPoint
.. autofunction:: deap.tools.cxESTwoPoints
.. autofunction:: deap.tools.cxSimulatedBinary
.. autofunction:: deap.tools.cxSimulatedBinaryBounded
.. autofunction:: deap.tools.cxMessyOnePoint
.. autofunction:: deap.gp.cxOnePoint
.. autofunction:: deap.gp.cxOnePointLeafBiased
.. autofunction:: deap.gp.cxSemantic
Mutation
++++++++
.. autofunction:: deap.tools.mutGaussian
.. autofunction:: deap.tools.mutShuffleIndexes
.. autofunction:: deap.tools.mutFlipBit
.. autofunction:: deap.tools.mutUniformInt
.. autofunction:: deap.tools.mutPolynomialBounded
.. autofunction:: deap.tools.mutESLogNormal
.. autofunction:: deap.gp.mutShrink
.. autofunction:: deap.gp.mutUniform
.. autofunction:: deap.gp.mutNodeReplacement
.. autofunction:: deap.gp.mutEphemeral
.. autofunction:: deap.gp.mutInsert
.. autofunction:: deap.gp.mutSemantic
Selection
+++++++++
.. autofunction:: deap.tools.selTournament
.. autofunction:: deap.tools.selRoulette
.. autofunction:: deap.tools.selNSGA2
.. autofunction:: deap.tools.selNSGA3
.. autofunction:: deap.tools.selNSGA3WithMemory
.. autofunction:: deap.tools.uniform_reference_points
.. autofunction:: deap.tools.selSPEA2
.. autofunction:: deap.tools.selRandom
.. autofunction:: deap.tools.selBest
.. autofunction:: deap.tools.selWorst
.. autofunction:: deap.tools.selDoubleTournament
.. autofunction:: deap.tools.selStochasticUniversalSampling
.. autofunction:: deap.tools.selTournamentDCD
.. autofunction:: deap.tools.selLexicase
.. autofunction:: deap.tools.selEpsilonLexicase
.. autofunction:: deap.tools.selAutomaticEpsilonLexicase
.. autofunction:: deap.tools.sortNondominated
.. autofunction:: deap.tools.sortLogNondominated
Bloat control
+++++++++++++
.. autofunction:: deap.gp.staticLimit
Migration
+++++++++
.. autofunction:: deap.tools.migRing(populations, k, selection[, replacement, migarray])
Statistics
----------
.. autoclass:: deap.tools.Statistics([key])
:members:
.. autoclass:: deap.tools.MultiStatistics(**kargs)
:members:
Logbook
-------
.. autoclass:: deap.tools.Logbook
:members:
Hall-Of-Fame
------------
.. autoclass:: deap.tools.HallOfFame
.. automethod:: deap.tools.HallOfFame.update
.. automethod:: deap.tools.HallOfFame.insert
.. automethod:: deap.tools.HallOfFame.remove
.. automethod:: deap.tools.HallOfFame.clear
.. autoclass:: deap.tools.ParetoFront([similar])
.. automethod:: deap.tools.ParetoFront.update
History
-------
.. autoclass:: deap.tools.History
.. automethod:: deap.tools.History.update
.. autoattribute:: deap.tools.History.decorator
.. automethod:: deap.tools.History.getGenealogy(individual[, max_depth])
Constraints
-----------
.. autoclass:: deap.tools.DeltaPenalty(feasibility, delta[, distance])
.. autoclass:: deap.tools.ClosestValidPenalty(feasibility, feasible, alpha[, distance])
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