@@ -937,19 +937,19 @@ def run(self):
937937 # Measuring the fitness of each chromosome in the population. Save the fitness in the last_generation_fitness attribute.
938938 self .last_generation_fitness = self .cal_pop_fitness ()
939939
940+ best_solution , best_solution_fitness , best_match_idx = self .best_solution (pop_fitness = self .last_generation_fitness )
941+ 942+ # Appending the best solution in the initial population to the best_solutions list.
943+ if self .save_best_solutions :
944+ self .best_solutions .append (best_solution )
945+ 940946 for generation in range (self .num_generations ):
941947 if not (self .on_fitness is None ):
942948 self .on_fitness (self , self .last_generation_fitness )
943949
944- best_solution , best_solution_fitness , best_match_idx = self .best_solution (pop_fitness = self .last_generation_fitness )
945- 946950 # Appending the fitness value of the best solution in the current generation to the best_solutions_fitness attribute.
947951 self .best_solutions_fitness .append (best_solution_fitness )
948952
949- # Appending the best solution to the best_solutions list.
950- if self .save_best_solutions :
951- self .best_solutions .append (best_solution )
952- 953953 # Selecting the best parents in the population for mating.
954954 self .last_generation_parents = self .select_parents (self .last_generation_fitness , num_parents = self .num_parents_mating )
955955 if not (self .on_parents is None ):
@@ -993,6 +993,12 @@ def run(self):
993993 # Measuring the fitness of each chromosome in the population. Save the fitness in the last_generation_fitness attribute.
994994 self .last_generation_fitness = self .cal_pop_fitness ()
995995
996+ best_solution , best_solution_fitness , best_match_idx = self .best_solution (pop_fitness = self .last_generation_fitness )
997+ 998+ # Appending the best solution to the best_solutions list.
999+ if self .save_best_solutions :
1000+ self .best_solutions .append (best_solution )
1001+ 9961002 # If the callback_generation attribute is not None, then cal the callback function after the generation.
9971003 if not (self .on_generation is None ):
9981004 r = self .on_generation (self )
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