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Here is the list of changes made to DEAP for the current release.
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- algorithms: Every algorithm now return the final population and a logbook
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containing the evolution statistical data.
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- base: Fitness objects are now hashable.
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- base: Added a ``dominates`` function to the Fitness, which can be replaced.
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This function is now used in most multi-objective specific selection methods
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instead of ``isDominated``.
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- base: Fitness - implementation of a ``__repr__`` method. (issue 20)
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- examples: Removed prefix (ga, gp, pso, etc.) from examples filename.
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- gp: Added ``pset`` to mutation operators that require it.
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- gp: Replaced the :func:`~deap.gp.stringify` function by :func:`PrimitiveTree.__str__`. Use ``str`` or ``print`` on trees to read their code.
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- gp: Added an explicit description of the error when there are no available
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primitive/terminal of a certain type.
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- gp: Added symbolic regression benchmarks in ``benchmarks.gp``.
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- gp: Removed the ephemeral generator.
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- gp: Added a :func:`~deap.gp.PrimitiveTree.from_string` function to :class:`~deap.gp.PrimitiveTree`.
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- gp: Added the possibility to name primitives added to a PrimitiveSet in :func:`~deap.gp.PrimitiveSet.addPrimitive`.
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- gp: Added object oriented inheritance to strongly typed genetic programming.
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- gp: :class:`~deap.gp.PrimitiveSetTyped` now requires real classes as type instead of string. See the :doc:`Spambase example <examples/gp_spambase>`.
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- gp: Replaced :func:`~deap.gp.evaluate` and :func:`~deap.gp.lambdify` by a single function :func:`~deap.gp.compile`.
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- gp: Replaced :func:`~deap.gp.lambdifyADF` by :func:`~deap.gp.compileADF`.
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- gp: New :func:`~deap.gp.graph` function that returns a list of nodes, edges and a
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labels dictionnary that can then be feeded directly to networkx to
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- gp: Renamed :func:`deap.gp.genRamped` as :func:`deap.gp.genHalfAndHalf`.
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- gp: Merged :func:`~deap.gp.staticDepthLimit` and :func:`~deap.gp.staticSizeLimit` in a
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single function :func:`~deap.gp.staticLimit` which takes a key function in argument than can
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be return the height, the size or whatever attribute the tree should be limited on.
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- tools: Revised the :class:`~deap.tools.HallOfFame` to include only unique individuals.
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- tools: Changed the way statistics are computed. See the
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:class:`~deap.tools.Statistics` and :class:`~deap.tools.MultiStatistics`
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documentation for more details and the tutorial :doc:`logging statistics <tutorials/basic/part3>` (issue 19).
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- tools: Replaced the :class:`EvolutionLogger` by :class:`~deap.tools.Logbook`.
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- tools: Removed :class:`~deap.tools.Checkpoint` class since it was more trivial to do simple
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checkpointing than using the class. The documentation now includes an
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example on how to do checkpointing without Checkpoint.
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- tools: Reorganize the operators in submodule, tools now being a package.
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- tools: Implementation of the logarithmic non-dominated sort by
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Fortin et al. (2013), available under the name :func:`~deap.tools.sortLogNondominated`.
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- tools: Mutation operators can now take either a value or a sequence
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of values as long as the individual as parameters (low, up, sigma, etc.).
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- tools: Removed DTM from the sources.
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- tools: Removed the cTools module. It was not properly maintained and
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- tools: Renamed :func:`~deap.tools.cxTwoPoints` as :func:`~deap.tools.cxTwoPoint`
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- tools: Renamed :func:`~deap.tools.cxESTwoPoints` as :func:`~deap.tools.cxESTwoPoint`
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- tools: Bounds as well as some other attribute related parameters now accept iterables or
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values as argument in crossovers and mutations.
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Documentation enhancements
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++++++++++++++++++++++++++
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- Major overhaul of the documentation structure.
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- Tutorial are now decomposed in two categories: basic and advanced.
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- New tutorial on :doc:`logging statistics <tutorials/basic/part3>`
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- New tutorial on :doc:`checkpointing <tutorials/advanced/checkpoint>`
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- New tutorial on :doc:`inheriting from Numpy <tutorials/advanced/numpy>`
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- creator: Issue 23: error in creator when using unicode source.
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- creator: create does not handle proper slicing of created classes inheriting
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from ``numpy.ndarray`` anymore. This was bug prone and extremely hard to maintain.
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Users are now requested to include ``numpy.copy()`` operation in their
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operators. A tutorial on inheriting from numpy is on its way.
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- tools: issue #26: Operators with bounds do not work correctly when
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bounds are provided as list instead of iterator. rev: `b172432515af`, `9d4718a8cf2a`.
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- tools: add missing arguments to sortLogNondominated (`k`, `first_front_only`). rev: `f60a6520b666`, `4de7df29dd0f`.
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- gp: issue #32: :meth:`~deap.gp.PrimitiveTree.from_string` used incorrect argument order with STGP. rev: `58c1a0711e1f`.