Coverage for moptipy / algorithms / modules / selections / __init__.py: 100%

1""" 

2The set of selection algorithms. 

3 

4:class:`~moptipy.algorithms.modules.selection.Selection` algorithms are 

5algorithms that choose elements from a pool of records based on their 

6:attr:`~moptipy.algorithms.modules.selection.FitnessRecord.fitness` and 

7random numbers. They are commonly used in Evolutionary Algorithms 

8(:class:`~moptipy.algorithms.so.general_ea.GeneralEA`). 

9 

10Currently, the following selection algorithms have been implemented: 

11 

12- :class:`~moptipy.algorithms.modules.selections.best.Best` selection picks 

13 the `n` best solutions from an array. It is the survival selection scheme 

14 used in a (mu+lambda) :class:`~moptipy.algorithms.so.ea.EA`. 

15- :class:`~moptipy.algorithms.modules.selections.random_without_repl\ 

16.RandomWithoutReplacement` randomly chooses `n` solutions without replacement. 

17 This is the mating selection scheme used in a (mu+lambda) 

18 :class:`~moptipy.algorithms.so.ea.EA`. 

19- :class:`~moptipy.algorithms.modules.selections.fitness_proportionate_sus\ 

20.FitnessProportionateSUS` performs fitness proportionate selection for 

21 minimization using Stochastic Uniform Sampling. It also allows you to 

22 specify the selection probability for the worst element. 

23- :class:`~moptipy.algorithms.modules.selections.tournament_with_repl.\ 

24TournamentWithReplacement` 

25 performs tournament selection with a specified tournament size with 

26 replacement. 

27- :class:`~moptipy.algorithms.modules.selections.tournament_without_repl.\ 

28TournamentWithoutReplacement` 

29 performs tournament selection with a specified tournament size without 

30 replacement. 

31"""