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Specific exceptions raised.

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This commit is contained in:
SimpleArt
2021-01-01 10:48:59 -05:00
committed by GitHub
parent 46ef4e818d
commit e19576f890
1 changed files with 3 additions and 2 deletions
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5
src/parent/Parent.py
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@ -13,7 +13,7 @@ def _check_selection_probability(selection_method):
if 0 <= ga.selection_probability <= 1: if 0 <= ga.selection_probability <= 1:
selection_method(ga) selection_method(ga)
else: else:
raise Exception("Selection probability must be between 0 and 1 to select parents.") raise ValueError("Selection probability must be between 0 and 1 to select parents.")
return new_method return new_method
@ -29,7 +29,8 @@ def _check_positive_fitness(selection_method):
if ga.get_chromosome_fitness(0) > 0 and ga.get_chromosome_fitness(-1) >= 0: if ga.get_chromosome_fitness(0) > 0 and ga.get_chromosome_fitness(-1) >= 0:
selection_method(ga) selection_method(ga)
else: else:
raise Exception("Converted fitness values can't have negative values or be all 0. Consider using rank selection or stochastic selection instead.") raise ValueError("Converted fitness values can't have negative values or be all 0."
+ " Consider using rank selection or stochastic selection instead.")
return new_method return new_method