paulin/EasyGA
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Minor edits

Browse Source
This commit is contained in:
SimpleArt
2020-10-25 22:36:54 -04:00
parent 3625453a28
commit ae74ce1766
3 changed files with 16 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/crossover/crossover_methods.py
View File

@ -3,7 +3,7 @@ import random
class Crossover_Methods:
class Population:
"""Methods for selecting chromosomes to crossover"""
"""Methods for selecting chromosomes to crossover."""
def sequential_selection(ga):
"""Select sequential pairs from the mating pool.
@ -41,22 +41,22 @@ class Crossover_Methods:
class Individual:
"""Methods for crossing parents"""
"""Methods for crossing parents."""
def single_point(ga, parent_one, parent_two):
"""Cross two parents by swapping genes at one random point"""
"""Cross two parents by swapping genes at one random point."""
index = random.randint(0, parent_one.size()-1)
return ga.make_chromosome(parent_one.get_gene_list()[:index] + parent_two.get_gene_list()[index:])
def multi_point(ga, parent_one, parent_two):
"""Cross two parents by swapping genes at multiple points"""
"""Cross two parents by swapping genes at multiple points."""
pass
def uniform(ga, parent_one, parent_two):
"""Cross two parents by swapping all genes randomly"""
"""Cross two parents by swapping all genes randomly."""
return ga.make_chromosome([ # Make a new chromosome
random.choice([ # by selecting random genes from
@ -66,10 +66,10 @@ class Crossover_Methods:
for i in range(parent_one.size())]) # for each gene
class Arithmetic:
"""Crossover methods for numerical genes"""
"""Crossover methods for numerical genes."""
def int_random(ga, parent_one, parent_two):
"""Cross two parents by taking a random integer value between each of the genes"""
"""Cross two parents by taking a random integer value between each of the genes."""
return ga.make_chromosome([ # Make a new chromosome
ga.make_gene( # filled with new genes
@ -81,7 +81,7 @@ class Crossover_Methods:
def int_weighted(ga, parent_one, parent_two):
"""Cross two parents by taking a a weighted average of the genes"""
"""Cross two parents by taking a a weighted average of the genes."""
# the percentage of genes taken from the first gene
weight = 0.25
@ -95,7 +95,7 @@ class Crossover_Methods:
def float_random(ga, parent_one, parent_two):
"""Cross two parents by taking a random numeric value between each of the genes"""
"""Cross two parents by taking a random numeric value between each of the genes."""
return ga.make_chromosome([ # Make a new chromosome
ga.make_gene( # filled with new genes
@ -108,7 +108,7 @@ class Crossover_Methods:
def float_weighted(ga, parent_one, parent_two):
"""Cross two parents by taking a a weighted average of the genes"""
"""Cross two parents by taking a a weighted average of the genes."""
# the percentage of genes taken from the first gene
weight = 0.25