Fix a bug in class TSP

ajnebro · ajnebro · commit 9be5c5d3a7e0 · 2025-10-27T12:28:10.000+01:00
diff --git a/examples/singleobjective/genetic_algorithm/generational_genetic_algorithm_tsp_with_contraints.py b/examples/singleobjective/genetic_algorithm/generational_genetic_algorithm_tsp_with_contraints.py
@@ -45,7 +45,7 @@ def __evaluate_constraints__(self, solution: PermutationSolution):
         mutation=PermutationSwapMutation(1.0 / problem.number_of_variables()),
         crossover=PMXCrossover(0.9),
         selection=BinaryTournamentSelection(solution_comparator),
-        termination_criterion=StoppingByEvaluations(max_evaluations=10000),
+        termination_criterion=StoppingByEvaluations(max_evaluations=50000),
         solution_comparator=solution_comparator
     )
 
diff --git a/src/jmetal/problem/singleobjective/tsp.py b/src/jmetal/problem/singleobjective/tsp.py
@@ -93,7 +93,8 @@ def evaluate(self, solution: PermutationSolution) -> PermutationSolution:
 
     def create_solution(self) -> PermutationSolution:
         new_solution = PermutationSolution(
-            number_of_variables=self.number_of_variables(), number_of_objectives=self.number_of_objectives()
+            number_of_variables=self.number_of_variables(), number_of_objectives=self.number_of_objectives(),
+            number_of_constraints=self.number_of_constraints()
         )
         new_solution.variables = random.sample(range(self.number_of_variables()), k=self.number_of_variables())
 

Original file line number	Diff line number	Diff line change
`@@ -45,7 +45,7 @@ def __evaluate_constraints__(self, solution: PermutationSolution):`
`45`	`45`	`mutation=PermutationSwapMutation(1.0 / problem.number_of_variables()),`
`46`	`46`	`crossover=PMXCrossover(0.9),`
`47`	`47`	`selection=BinaryTournamentSelection(solution_comparator),`
`48`		`- termination_criterion=StoppingByEvaluations(max_evaluations=10000),`
	`48`	`+ termination_criterion=StoppingByEvaluations(max_evaluations=50000),`
`49`	`49`	`solution_comparator=solution_comparator`
`50`	`50`	`)`
`51`	`51`
Original file line number	Diff line number	Diff line change
`@@ -93,7 +93,8 @@ def evaluate(self, solution: PermutationSolution) -> PermutationSolution:`
`93`	`93`
`94`	`94`	`def create_solution(self) -> PermutationSolution:`
`95`	`95`	`new_solution = PermutationSolution(`
`96`		`- number_of_variables=self.number_of_variables(), number_of_objectives=self.number_of_objectives()`
	`96`	`+ number_of_variables=self.number_of_variables(), number_of_objectives=self.number_of_objectives(),`
	`97`	`+ number_of_constraints=self.number_of_constraints()`
`97`	`98`	`)`
`98`	`99`	`new_solution.variables = random.sample(range(self.number_of_variables()), k=self.number_of_variables())`
`99`	`100`