def test_interp_membership():
x = np.r_[0:4.1:0.1]
mfx = trapmf(x, [0, 1, 2, 4])
yy = interp_membership(x, mfx, 0)
assert yy == 0
yy = interp_membership(x, mfx, 0.535)
assert_allclose(np.r_[yy], np.r_[0.535])
yy = interp_membership(x, mfx, np.pi / 3.)
assert yy == 1
yy = interp_membership(x, mfx, 2.718)
assert_allclose(np.r_[yy], np.r_[0.641])
assert_allclose(interp_membership(x, mfx, [0.2, 2.73, 3.14]),
np.asarray([interp_membership(x, mfx, i)
for i in [0.2, 2.73, 3.14]]))
mfx[-1] = 0.7
mfx[0] = 0.2
assert_allclose([0, 0], interp_membership(x, mfx, [-11, 5]))
assert_allclose([0.2, 0.7], interp_membership(x, mfx, [-11, 5],
False))
def test_interp_membership():
x = np.r_[0:4.1:0.1]
mfx = trapmf(x, [0, 1, 2, 4])
yy = interp_membership(x, mfx, 0)
assert yy == 0
yy = interp_membership(x, mfx, 0.535)
assert_allclose(np.r_[yy], np.r_[0.535])
yy = interp_membership(x, mfx, np.pi / 3.)
assert yy == 1
yy = interp_membership(x, mfx, 2.718)
assert_allclose(np.r_[yy], np.r_[0.641])
def test_interp_membership():
x = np.r_[0:4.1:0.1]
mfx = trapmf(x, [0, 1, 2, 4])
yy = interp_membership(x, mfx, 0)
assert yy == 0
yy = interp_membership(x, mfx, 0.535)
assert_allclose(np.r_[yy], np.r_[0.535])
yy = interp_membership(x, mfx, np.pi / 3.)
assert yy == 1
yy = interp_membership(x, mfx, 2.718)
assert_allclose(np.r_[yy], np.r_[0.641])
def test_interp_universe():
x = np.r_[0:4.1:0.1]
mfx = trapmf(x, [0, 1, 2, 4])
xx = interp_universe(x, mfx, 0.5)
assert_allclose(xx, [0.5, 3])
xx = interp_universe(x, mfx, 0.0)
assert_allclose(xx, [0, 4])
xx = interp_universe(x, mfx, 1.5)
assert len(xx) == 0
xx = interp_universe(x, mfx, 0.3)
y = [interp_membership(x, mfx, value) for value in xx]
assert_allclose(y, 0.3)
