def test_encode_and_decode_gray_code(self):
ga = GeneticAlgorithm(None)
gen = np.array([[0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0,
1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0,
0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1],
[1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0,
1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1,
1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1]])
vlb = np.array([-170.0, -170.0, -170.0, -170.0, -170.0, -170.0])
vub = np.array([255.0, 255.0, 255.0, 170.0, 170.0, 170.0])
bits = np.array([9, 9, 9, 9, 9, 9])
x = np.array([[-69.36399217, 22.12328767, -7.81800391, -66.86888454, 116.77103718, 76.18395303],
[248.34637965, 191.79060665, -31.93737769, 97.47553816, 118.76712329, 92.15264188]])
ga.npop = 2
ga.lchrom = int(np.sum(bits))
ga.gray_code = True
np.testing.assert_array_almost_equal(x, ga.decode(gen, vlb, vub, bits))
np.testing.assert_array_almost_equal(gen[0], ga.encode(x[0], vlb, vub, bits))
np.testing.assert_array_almost_equal(gen[1], ga.encode(x[1], vlb, vub, bits))
dec = ga.decode(gen, vlb, vub, bits)
enc0 = ga.encode(dec[0], vlb, vub, bits)
enc1 = ga.encode(dec[1], vlb, vub, bits)
np.testing.assert_array_almost_equal(gen[0], enc0) # decode followed by encode gives original array
np.testing.assert_array_almost_equal(gen[1], enc1)
def test_encode_and_decode(self):
ga = GeneticAlgorithm(None)
gen = np.array([[0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 1, 1,
1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0,
1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0,
0, 1, 0],
[1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 1,
1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0,
1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1,
0, 1, 0]])
vlb = np.array([-170.0, -170.0, -170.0, -170.0, -170.0, -170.0])
vub = np.array([255.0, 255.0, 255.0, 170.0, 170.0, 170.0])
bits = np.array([9, 9, 9, 9, 9, 9])
x = np.array([[-69.36399217, 22.12328767, -7.81800391, -66.86888454,
116.77103718, 76.18395303],
[248.34637965, 191.79060665, -31.93737769, 97.47553816,
118.76712329, 92.15264188]])
ga.npop = 2
ga.lchrom = int(np.sum(bits))
np.testing.assert_array_almost_equal(x, ga.decode(gen, vlb, vub, bits))
np.testing.assert_array_almost_equal(gen[0], ga.encode(x[0], vlb, vub, bits))
np.testing.assert_array_almost_equal(gen[1], ga.encode(x[1], vlb, vub, bits))