def test_hit_and_run_inactive_01(self):
np.random.seed(42)
inputs = np.random.uniform(-1, 1, 60).reshape(15, 4)
outputs = np.random.uniform(0, 5, 15)
ss = ActiveSubspaces(dim=1, method='local', n_boot=250)
ss.fit(inputs=inputs, outputs=outputs)
new_inputs = np.random.uniform(-1, 1, 8).reshape(2, 4)
active = ss.transform(new_inputs)[0]
inactive_swap = np.array([
ss._hit_and_run_inactive(reduced_input=red_inp, n_points=1)
for red_inp in active
])
inactive_inputs = np.swapaxes(inactive_swap, 1, 2)
new_inputs = ss._rotate_x(reduced_inputs=active,
inactive_inputs=inactive_inputs)[0]
np.testing.assert_array_almost_equal(active, new_inputs.dot(ss.W1))
def test_hit_and_run_inactive_02(self):
np.random.seed(42)
inputs = np.random.uniform(-1, 1, 60).reshape(15, 4)
outputs = np.random.uniform(0, 5, 15)
ss = ActiveSubspaces()
ss.compute(inputs=inputs, outputs=outputs, method='local', nboot=250)
ss.partition(1)
new_inputs = np.random.uniform(-1, 1, 8).reshape(2, 4)
active = ss.forward(new_inputs)[0]
inactive_swap = np.array([
ss._hit_and_run_inactive(reduced_input=red_inp, n_points=10)
for red_inp in active
])
inactive_inputs = np.swapaxes(inactive_swap, 1, 2)
new_inputs = ss._rotate_x(reduced_inputs=active,
inactive_inputs=inactive_inputs)[0]
np.testing.assert_array_almost_equal(np.kron(active, np.ones((10, 1))),
new_inputs.dot(ss.W1))