class RosenbrockTestCase(unittest.TestCase):
def setUp(self):
benchmark = benchmarks.Rosenbrock()
self.model = Model(algorithm='PSO')
self.model.configuration.terminator = inspyred.ec.terminators.generation_termination
x = Variable('x', lb=0, ub=2)
y = Variable('y', lb=0, ub=2)
rosenbrock_obj = Objective((1 - x) ** 2 + 100 * (y - y ** 2) ** 2, name="Rosenbrock function", direction='min')
self.model.objective = rosenbrock_obj
def test_evolutionary_strategy(self):
self.model.configuration.max_generations = 100
self.model.configuration.terminator = inspyred.ec.terminators.generation_termination
self.model.configuration.observer = my_observer
self.model.configuration.selector = inspyred.ec.selectors.tournament_selection
final_pop = self.model.optimize()
best = max(final_pop)
self.assertAlmostEqual(best.fitness, 0)
def test_pso(self):
self.model.algorithm = 'PSO'
self.model.configuration.max_generations = 100
final_pop = self.model.optimize()
best = max(final_pop)
self.assertAlmostEqual(best.fitness, 0)
class RosenbrockTestCase(unittest.TestCase):
def setUp(self):
self.model = Model(algorithm='PSO')
self.model.configuration.terminator = inspyred.ec.terminators.generation_termination
x = Variable('x', lb=0, ub=2)
y = Variable('y', lb=0, ub=2)
rosenbrock_obj = Objective((1 - x)**2 + 100 * (y - y**2)**2,
name="Rosenbrock function",
direction='min')
self.model.objective = rosenbrock_obj
def test_evolutionary_strategy(self):
self.model.configuration.max_generations = 100
self.model.configuration.terminator = inspyred.ec.terminators.generation_termination
self.model.configuration.observer = my_observer
self.model.configuration.selector = inspyred.ec.selectors.tournament_selection
final_pop = self.model.optimize()
best = max(final_pop)
self.assertAlmostEqual(best.fitness, 0)
def test_pso(self):
self.model.algorithm = 'PSO'
self.model.configuration.max_generations = 100
final_pop = self.model.optimize()
best = max(final_pop)
self.assertAlmostEqual(best.fitness, 0)
def setUp(self):
self.model = Model(algorithm='PSO')
self.model.configuration.terminator = inspyred.ec.terminators.generation_termination
x = Variable('x', lb=0, ub=2)
y = Variable('y', lb=0, ub=2)
rosenbrock_obj = Objective((1 - x)**2 + 100 * (y - y**2)**2,
name="Rosenbrock function",
direction='min')
self.model.objective = rosenbrock_obj
def setUp(self):
benchmark = benchmarks.Rosenbrock()
self.model = Model(algorithm='PSO')
self.model.configuration.terminator = inspyred.ec.terminators.generation_termination
x = Variable('x', lb=0, ub=2)
y = Variable('y', lb=0, ub=2)
rosenbrock_obj = Objective((1 - x) ** 2 + 100 * (y - y ** 2) ** 2, name="Rosenbrock function", direction='min')
self.model.objective = rosenbrock_obj