def create_tree():
n1 = node.Node(0)
n2 = node.Node(1)
n3 = node.Node(0)
n4 = node.Node(1)
n5 = node.Node(0)
node.set_children(n1, [n2, n3])
node.set_children(n2, [n4, n5])
return solution.Solution(n1)
def create_tree_type3():
n1 = node.Node(0)
n2 = node.Node(1)
n3 = node.Node(0)
n4 = node.Node(1)
n5 = node.Node(0)
node.set_children(n1, [n2, n3, n4])
node.set_children(n2, [n5])
return Solution(n1)
def setUp(self):
self.data = 5
self.cos2X = arithmetic.Cos2XProblem(self.data)
self.n1 = node.Node(0)
self.n2 = node.Node(1)
self.n3 = node.Node(4)
self.n4 = node.Node(4)
self.n5 = node.Node(4)
node.set_children(self.n1, [self.n2, self.n3])
node.set_children(self.n2, [self.n4, self.n5])
def create_tree():
# odd numbers are ids of terminal nodes, the others are non-terminal nodes.
n1 = node.Node(0)
n2 = node.Node(2)
n3 = node.Node(1)
n4 = node.Node(3)
n5 = node.Node(5)
node.set_children(n1, [n2, n3])
node.set_children(n2, [n4, n5])
return solution.Solution(n1)
def get_population():
s1 = solution.Solution(node.Node())
s2 = solution.Solution(node.Node())
s3 = solution.Solution(node.Node())
solution.set_previous_fitness(s1, 1)
solution.set_previous_fitness(s2, 2)
solution.set_previous_fitness(s3, 3)
pop = []
for _ in range(2):
pop.extend([s1, s2, s3])
pop = pop * 2
return pop
def test_get_parent_node(self):
node.set_id(self.n1, 0)
node.set_id(self.n2, 1)
node.set_children(self.n1, [self.n2, self.n3])
node.set_children(self.n2, [self.n4, self.n5, self.n6])
self.assertEqual(node.get_parent_node(self.n1, self.n4), (0, self.n2))
msg = 'There is no parent of root.'
with self.assertRaises(ValueError, msg=msg):
node.get_parent_node(self.n1, self.n1)
msg = 'Invalid arguments: cannot find parent.'
with self.assertRaises(ValueError, msg=msg):
node.get_parent_node(node.Node(), node.Node())
def setUp(self):
self.dim = 2
self.even_parity = boolean.EvenParity(self.dim)
self.x = np.array(
[[False, False], [True, False], [False, True], [True, True]],
dtype=bool)
self.y = np.array([False, True, True, False], dtype=bool)
self.n1 = node.Node(0)
self.n2 = node.Node(1)
self.n3 = node.Node(4)
self.n4 = node.Node(4)
self.n5 = node.Node(4)
node.set_children(self.n1, [self.n2, self.n3])
node.set_children(self.n2, [self.n4, self.n5])
def create_tree(root_id):
# odd numbers are ids of terminal nodes, the others are non-terminal nodes.
n1 = node.Node(root_id)
n2 = node.Node(2)
n3 = node.Node(1)
n4 = node.Node(3)
n5 = node.Node(5)
node.set_children(n1, [n2, n3])
node.set_children(n2, [n4, n5])
s = solution.Solution(n1)
solution.set_previous_fitness(s, root_id)
return s
def test_destructive_crossover_core(self):
s1_nodes = node.get_all_node(self.parents[0].root)
s2_nodes = node.get_all_node(self.parents[1].root)
points = [s1_nodes[0], s2_nodes[2]]
expected_nodes1 = [node.Node(1)]
expected_nodes2 = [node.Node(0), node.Node(1), node.Node(0), node.Node(1), node.Node(1),
node.Node(0), node.Node(0), node.Node(0), node.Node(0)]
node.set_children(expected_nodes2[0], [expected_nodes2[1], expected_nodes2[8]])
node.set_children(expected_nodes2[1], [expected_nodes2[2], expected_nodes2[7]])
node.set_children(expected_nodes2[2], [expected_nodes2[3], expected_nodes2[6]])
node.set_children(expected_nodes2[3], [expected_nodes2[4], expected_nodes2[5]])
new_s1, new_s2 = co.destructive_crossover(self.parents, points)
self.assertTrue(node.node_equal(expected_nodes1[0], new_s1.root, as_tree=True))
self.assertTrue(node.node_equal(expected_nodes2[0], new_s2.root, as_tree=True))
self.assertTrue(self.parents[0] is new_s1)
self.assertTrue(self.parents[1] is new_s2)
def new_node(parent, depth):
current_node = node.Node()
if self.t_prob > random.random() or depth == self.max_depth:
func_id = random.choice(self.terminal_list)
else:
current_node.children = []
func_id = random.choice(self.nonterminal_list)
n_child = node.get_n_children(
func_id, self.func_bank.get_function_list())
for _ in range(n_child):
new_node(current_node, depth + 1)
node.set_id(current_node, func_id)
if parent is not None:
parent.children.append(current_node)
else:
return current_node
def setUp(self):
self.n1 = node.Node()
self.n2 = node.Node()
self.n3 = node.Node()
self.n4 = node.Node()
self.n5 = node.Node()
self.n6 = node.Node()
self.f1 = node.Function(2)
self.f2 = node.Function(3)
# ``function_dict'' is not separated based on kinds of nodes
# such as non-terminal nodes or terminal nodes here.
self.function_dict = {0: self.f1, 1: self.f2}
def test_solution_equal(self):
na1 = node.Node(0)
na2 = node.Node(1)
na3 = node.Node(0)
na4 = node.Node(1)
na5 = node.Node(0)
na6 = node.Node(1)
node.set_id(na1, 0)
node.set_id(na2, 1)
node.set_children(na1, [na2, na3])
node.set_children(na2, [na4, na5, na6])
sa = solution.Solution(na1)
self.assertTrue(solution.solution_equal(self.s1, sa, True))
self.assertFalse(solution.solution_equal(self.s1, sa, False))
na4 = node.Node(0)
node.set_children(na2, [na4, na5, na6])
self.assertFalse(solution.solution_equal(self.s1, sa, True))
def test_destructive_replace_node(self):
na1 = node.Node(1)
na2 = node.Node(0)
node.set_id(na1, 0)
node.set_id(na2, 1)
node.set_children(na1, [na2])
original_s1 = copy.deepcopy(self.s1)
new_s1 = solution.replace_node(self.s1, self.n2, na1, destructive=True)
expected_nodes = [node.Node(0), node.Node(0), node.Node(1), node.Node(0)]
node.set_children(expected_nodes[0], [expected_nodes[1], expected_nodes[3]])
node.set_children(expected_nodes[1], [expected_nodes[2]])
self.assertTrue(node.node_equal(new_s1.root, expected_nodes[0], as_tree=True))
self.assertEqual(new_s1.n_nodes, len(expected_nodes))
self.assertEqual(new_s1.depth, 2)
# Check whether the original solution is NOT protected.
self.assertFalse(solution.solution_equal(original_s1, new_s1))
self.assertTrue(self.s1 is new_s1)
def setUp(self):
self.n1 = node.Node(0)
self.n2 = node.Node(1)
self.n3 = node.Node(0)
self.n4 = node.Node(1)
self.n5 = node.Node(0)
self.n6 = node.Node(1)
self.f1 = node.Function(2)
self.f2 = node.Function(3)
# ``function_dict'' is not separated based on kinds of nodes
# such as non-terminal nodes or terminal nodes here.
self.function_dict = {0: self.f1, 1: self.f2}
node.set_children(self.n1, [self.n2, self.n3])
node.set_children(self.n2, [self.n4, self.n5, self.n6])
self.s1 = solution.Solution(self.n1)
self.depth = 2
self.n_nodes = 6
def setUp(self):
self.pop = [solution.Solution(node.Node()) for _ in range(100)]
def setUp(self):
ExampleSolution.__init__(self)
self.problem = EmptyProblem()
self.pop = [solution.Solution(node.Node()) for _ in range(100)]
def make_node(func_id):
new_node = node.Node()
node.set_id(new_node, func_id)
return new_node
