Fixed attributes to allow setting attributes on initialization
e.g.
GA({
'chromosome_length' : 10,
'population_size' : 50
})
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@ -18,57 +18,95 @@ from survivor_selection import Survivor_Selection
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from mutation import Mutation_Methods
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from crossover import Crossover_Methods
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class attributes:
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class Attributes:
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"""Default GA attributes can be found here. If any attributes have not
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been set then they will fall back onto the default attribute. All
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attributes have been catigorized to explain sections in the ga process."""
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def __init__(self):
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def __init__(self, attributes):
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# Default settings for the GA
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default_attributes = {
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'chromosome_length' : 10,
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'population_size' : 10,
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'chromosome_impl' : None,
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'gene_impl' : lambda: random.randint(1, 10),
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'population' : None,
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'target_fitness_type' : 'max',
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'update_fitness' : True,
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'parent_ratio' : 0.10,
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'selection_probability' : 0.50,
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'tournament_size_ratio' : 0.10,
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'current_generation' : 0,
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'current_fitness' : 0,
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'generation_goal' : 15,
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'fitness_goal' : None,
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'chromosome_mutation_rate' : 0.15,
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'gene_mutation_rate' : 0.03,
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'initialization_impl' : Initialization_Methods.random_initialization,
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'fitness_function_impl' : Fitness_Examples.is_it_5,
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'make_population' : create_population,
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'make_chromosome' : create_chromosome,
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'make_gene' : create_gene,
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'parent_selection_impl' : Parent_Selection.Rank.tournament,
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'crossover_individual_impl' : Crossover_Methods.Individual.single_point,
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'crossover_population_impl' : Crossover_Methods.Population.sequential_selection,
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'survivor_selection_impl' : Survivor_Selection.fill_in_best,
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'mutation_individual_impl' : Mutation_Methods.Individual.single_gene,
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'mutation_population_impl' : Mutation_Methods.Population.random_selection,
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'termination_impl' : Termination_Methods.fitness_and_generation_based,
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'database_name' : 'database.db'
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}
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# Filling in the default settings
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for attribute in default_attributes.keys():
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if attribute not in attributes.keys():
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attributes[attribute] = default_attributes[attribute]
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# Initilization variables
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self.chromosome_length = 10
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self.population_size = 10
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self.chromosome_impl = None
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self.gene_impl = lambda: random.randint(1, 10)
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self.population = None
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self.target_fitness_type = 'max'
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self.update_fitness = True
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self.chromosome_length = attributes['chromosome_length']
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self.population_size = attributes['population_size']
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self.chromosome_impl = attributes['chromosome_impl']
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self.gene_impl = attributes['gene_impl']
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self.population = attributes['population']
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self.target_fitness_type = attributes['target_fitness_type']
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self.update_fitness = attributes['update_fitness']
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# Selection variables
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self.parent_ratio = 0.1
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self.selection_probability = 0.75
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self.tournament_size_ratio = 0.1
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self.parent_ratio = attributes['parent_ratio']
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self.selection_probability = attributes['selection_probability']
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self.tournament_size_ratio = attributes['tournament_size_ratio']
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# Termination variables
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self.current_generation = 0
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self.current_fitness = 0
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self.generation_goal = 15
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self.fitness_goal = None
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self.current_generation = attributes['current_generation']
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self.current_fitness = attributes['current_fitness']
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self.generation_goal = attributes['generation_goal']
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self.fitness_goal = attributes['fitness_goal']
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# Mutation variables
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self.gene_mutation_rate = 0.03
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self.chromosome_mutation_rate = 0.15
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self.chromosome_mutation_rate = attributes['chromosome_mutation_rate']
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self.gene_mutation_rate = attributes['gene_mutation_rate']
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# Default EasyGA implimentation structure
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self.initialization_impl = Initialization_Methods.random_initialization
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self.fitness_function_impl = Fitness_Examples.is_it_5
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self.make_population = create_population
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self.make_chromosome = create_chromosome
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self.make_gene = create_gene
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self.initialization_impl = attributes['initialization_impl']
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self.fitness_function_impl = attributes['fitness_function_impl']
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self.make_population = attributes['make_population']
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self.make_chromosome = attributes['make_chromosome']
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self.make_gene = attributes['make_gene']
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# Methods for accomplishing Parent-Selection -> Crossover -> Survivor_Selection -> Mutation
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self.parent_selection_impl = Parent_Selection.Rank.tournament
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self.crossover_individual_impl = Crossover_Methods.Individual.single_point
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self.crossover_population_impl = Crossover_Methods.Population.sequential_selection
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self.survivor_selection_impl = Survivor_Selection.fill_in_best
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self.mutation_individual_impl = Mutation_Methods.Individual.single_gene
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self.mutation_population_impl = Mutation_Methods.Population.random_selection
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self.parent_selection_impl = attributes['parent_selection_impl']
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self.crossover_individual_impl = attributes['crossover_individual_impl']
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self.crossover_population_impl = attributes['crossover_population_impl']
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self.survivor_selection_impl = attributes['survivor_selection_impl']
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self.mutation_individual_impl = attributes['mutation_individual_impl']
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self.mutation_population_impl = attributes['mutation_population_impl']
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# The type of termination to impliment
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self.termination_impl = Termination_Methods.fitness_and_generation_based
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self.termination_impl = attributes['termination_impl']
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# Database varibles
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self.database_name = "database.db"
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self.database_name = attributes['database_name']
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# Getter and setters for all required varibles
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@property
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