def test_compress_nd(self):
# Tests compress_nd
x = np.array(list(range(3 * 4 * 5))).reshape(3, 4, 5)
m = np.zeros((3, 4, 5)).astype(bool)
m[1, 1, 1] = True
x = array(x, mask=m)
# axis=None
a = compress_nd(x)
assert_equal(a,
[[[0, 2, 3, 4], [10, 12, 13, 14], [15, 17, 18, 19]],
[[40, 42, 43, 44], [50, 52, 53, 54], [55, 57, 58, 59]]])
# axis=0
a = compress_nd(x, 0)
assert_equal(a,
[[[0, 1, 2, 3, 4], [5, 6, 7, 8, 9], [10, 11, 12, 13, 14],
[15, 16, 17, 18, 19]],
[[40, 41, 42, 43, 44], [45, 46, 47, 48, 49],
[50, 51, 52, 53, 54], [55, 56, 57, 58, 59]]])
# axis=1
a = compress_nd(x, 1)
assert_equal(a, [
[[0, 1, 2, 3, 4], [10, 11, 12, 13, 14], [15, 16, 17, 18, 19]],
[[20, 21, 22, 23, 24], [30, 31, 32, 33, 34], [35, 36, 37, 38, 39]],
[[40, 41, 42, 43, 44], [50, 51, 52, 53, 54], [55, 56, 57, 58, 59]]
])
a2 = compress_nd(x, (1, ))
a3 = compress_nd(x, -2)
a4 = compress_nd(x, (-2, ))
assert_equal(a, a2)
assert_equal(a, a3)
assert_equal(a, a4)
# axis=2
a = compress_nd(x, 2)
assert_equal(
a,
[[[0, 2, 3, 4], [5, 7, 8, 9], [10, 12, 13, 14], [15, 17, 18, 19]],
[[20, 22, 23, 24], [25, 27, 28, 29], [30, 32, 33, 34],
[35, 37, 38, 39]],
[[40, 42, 43, 44], [45, 47, 48, 49], [50, 52, 53, 54],
[55, 57, 58, 59]]])
a2 = compress_nd(x, (2, ))
a3 = compress_nd(x, -1)
a4 = compress_nd(x, (-1, ))
assert_equal(a, a2)
assert_equal(a, a3)
assert_equal(a, a4)
# axis=(0, 1)
a = compress_nd(x, (0, 1))
assert_equal(a, [[
[0, 1, 2, 3, 4], [10, 11, 12, 13, 14], [15, 16, 17, 18, 19]
], [[40, 41, 42, 43, 44], [50, 51, 52, 53, 54], [55, 56, 57, 58, 59]]])
a2 = compress_nd(x, (0, -2))
assert_equal(a, a2)
# axis=(1, 2)
a = compress_nd(x, (1, 2))
assert_equal(a,
[[[0, 2, 3, 4], [10, 12, 13, 14], [15, 17, 18, 19]],
[[20, 22, 23, 24], [30, 32, 33, 34], [35, 37, 38, 39]],
[[40, 42, 43, 44], [50, 52, 53, 54], [55, 57, 58, 59]]])
a2 = compress_nd(x, (-2, 2))
a3 = compress_nd(x, (1, -1))
a4 = compress_nd(x, (-2, -1))
assert_equal(a, a2)
assert_equal(a, a3)
assert_equal(a, a4)
# axis=(0, 2)
a = compress_nd(x, (0, 2))
assert_equal(
a,
[[[0, 2, 3, 4], [5, 7, 8, 9], [10, 12, 13, 14], [15, 17, 18, 19]],
[[40, 42, 43, 44], [45, 47, 48, 49], [50, 52, 53, 54],
[55, 57, 58, 59]]])
a2 = compress_nd(x, (0, -1))
assert_equal(a, a2)
def test_compress_nd(self):
# Tests compress_nd
x = np.array(list(range(3*4*5))).reshape(3, 4, 5)
m = np.zeros((3,4,5)).astype(bool)
m[1,1,1] = True
x = array(x, mask=m)
# axis=None
a = compress_nd(x)
assert_equal(a, [[[ 0, 2, 3, 4],
[10, 12, 13, 14],
[15, 17, 18, 19]],
[[40, 42, 43, 44],
[50, 52, 53, 54],
[55, 57, 58, 59]]])
# axis=0
a = compress_nd(x, 0)
assert_equal(a, [[[ 0, 1, 2, 3, 4],
[ 5, 6, 7, 8, 9],
[10, 11, 12, 13, 14],
[15, 16, 17, 18, 19]],
[[40, 41, 42, 43, 44],
[45, 46, 47, 48, 49],
[50, 51, 52, 53, 54],
[55, 56, 57, 58, 59]]])
# axis=1
a = compress_nd(x, 1)
assert_equal(a, [[[ 0, 1, 2, 3, 4],
[10, 11, 12, 13, 14],
[15, 16, 17, 18, 19]],
[[20, 21, 22, 23, 24],
[30, 31, 32, 33, 34],
[35, 36, 37, 38, 39]],
[[40, 41, 42, 43, 44],
[50, 51, 52, 53, 54],
[55, 56, 57, 58, 59]]])
a2 = compress_nd(x, (1,))
a3 = compress_nd(x, -2)
a4 = compress_nd(x, (-2,))
assert_equal(a, a2)
assert_equal(a, a3)
assert_equal(a, a4)
# axis=2
a = compress_nd(x, 2)
assert_equal(a, [[[ 0, 2, 3, 4],
[ 5, 7, 8, 9],
[10, 12, 13, 14],
[15, 17, 18, 19]],
[[20, 22, 23, 24],
[25, 27, 28, 29],
[30, 32, 33, 34],
[35, 37, 38, 39]],
[[40, 42, 43, 44],
[45, 47, 48, 49],
[50, 52, 53, 54],
[55, 57, 58, 59]]])
a2 = compress_nd(x, (2,))
a3 = compress_nd(x, -1)
a4 = compress_nd(x, (-1,))
assert_equal(a, a2)
assert_equal(a, a3)
assert_equal(a, a4)
# axis=(0, 1)
a = compress_nd(x, (0, 1))
assert_equal(a, [[[ 0, 1, 2, 3, 4],
[10, 11, 12, 13, 14],
[15, 16, 17, 18, 19]],
[[40, 41, 42, 43, 44],
[50, 51, 52, 53, 54],
[55, 56, 57, 58, 59]]])
a2 = compress_nd(x, (0, -2))
assert_equal(a, a2)
# axis=(1, 2)
a = compress_nd(x, (1, 2))
assert_equal(a, [[[ 0, 2, 3, 4],
[10, 12, 13, 14],
[15, 17, 18, 19]],
[[20, 22, 23, 24],
[30, 32, 33, 34],
[35, 37, 38, 39]],
[[40, 42, 43, 44],
[50, 52, 53, 54],
[55, 57, 58, 59]]])
a2 = compress_nd(x, (-2, 2))
a3 = compress_nd(x, (1, -1))
a4 = compress_nd(x, (-2, -1))
assert_equal(a, a2)
assert_equal(a, a3)
assert_equal(a, a4)
# axis=(0, 2)
a = compress_nd(x, (0, 2))
assert_equal(a, [[[ 0, 2, 3, 4],
[ 5, 7, 8, 9],
[10, 12, 13, 14],
[15, 17, 18, 19]],
[[40, 42, 43, 44],
[45, 47, 48, 49],
[50, 52, 53, 54],
[55, 57, 58, 59]]])
a2 = compress_nd(x, (0, -1))
assert_equal(a, a2)