def _calc_pareto_set(self, flatten=True, **kwargs):
x1_a = np.linspace(0.1, 0.4, 50)
x1_b = np.linspace(0.6, 0.9, 50)
x2 = np.zeros(50)
a, b = np.column_stack([x1_a, x2]), np.column_stack([x1_b, x2])
return stack(a, b, flatten=flatten)
def func_ps(flatten=True, **kwargs):
x1_a = np.linspace(0.1, 0.4, 50)
x1_b = np.linspace(0.6, 0.9, 50)
x2 = np.zeros(50)
a, b = np.column_stack([x1_a, x2]), np.column_stack([x1_b, x2])
return stack(a, b, flatten=flatten)
def _calc_pareto_front(self, flatten=True, **kwargs):
f1_a = np.linspace(0.1**2, 0.4**2, 100)
f2_a = (np.sqrt(f1_a) - 1)**2
f1_b = np.linspace(0.6**2, 0.9**2, 100)
f2_b = (np.sqrt(f1_b) - 1)**2
a, b = np.column_stack([f1_a, f2_a]), np.column_stack([f1_b, f2_b])
return stack(a, b, flatten=flatten)