Last change
on this file since 1139 was
1139,
checked in by Maciej Komosinski, 4 years ago
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Added --debug mode that prints names of steps; final multiple evaluation now evaluates genotypes in hall of fame instead of the last population
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File size:
811 bytes
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Rev | Line | |
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[1113] | 1 | from evolalg.base.step import Step |
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| 2 | |
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| 3 | |
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| 4 | class LambdaStep(Step): |
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| 5 | """ |
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[1114] | 6 | Wrapper for lambda expressions. In "normal" mode each step is given the entire population to work with. This class |
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[1113] | 7 | helps with any Callable that accepts individuals. |
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| 8 | |
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| 9 | """ |
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| 10 | def __init__(self, fun, in_place=True, *args, **kwargs): |
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| 11 | """ |
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| 12 | @param fun: Callable callable that will be called for each individual |
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| 13 | @param in_place: Bool |
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| 14 | """ |
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| 15 | super(LambdaStep, self).__init__(*args, **kwargs) |
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| 16 | self.fun = fun |
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| 17 | self.in_place = in_place |
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| 18 | |
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| 19 | def call(self, population): |
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[1139] | 20 | super(LambdaStep, self).call(population) |
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[1113] | 21 | if self.in_place: |
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| 22 | [self.fun(_) for _ in population] |
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| 23 | else: |
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| 24 | population = [self.fun(_) for _ in population] |
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| 25 | return population |
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