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Updated fitness based termination and fixed some EasyGA stuff

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This commit is contained in:
SimpleArt
2020-10-22 00:05:42 -04:00
parent 8e2698fc0d
commit 6c6c64e342
3 changed files with 43 additions and 25 deletions
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19
src/termination_point/termination_methods.py
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@ -4,22 +4,23 @@ class Termination_Methods:
def fitness_based(ga):
"""Fitness based approach to terminate when the goal fitness has been reached"""
# Need to start the algorithm if the population is None
# Need to start the algorithm if the population is None.
if ga.population == None:
return True
# Check all chromosomes
for chromosome in ga.population.get_all_chromosomes():
# If minimum fitness goal reached, stop ga.
if ga.target_fitness_type == 'min' and ga.get_chromosome_fitness(0) >= ga.convert_fitness(ga.fitness_goal):
return False
# Stop if a chromosome has reached the fitness_goal
if(chromosome.fitness >= ga.fitness_goal):
return False
# Continue if no chromosomes have reached the fitness goal
# If maximum fitness goal reached, stop ga.
if ga.target_fitness_type == 'max' and ga.get_chromosome_fitness(0) >= ga.convert_fitness(ga.fitness_goal):
return False
# Otherwise continue ga.
return True
def generation_based(ga):
"""Generation based approach to terminate when the goal generation has been reached"""
"""Generation based approach to terminate when the goal generation has been reached."""
return ga.current_generation < ga.generation_goal