8000 ENH: Add ma.convolve and ma.correlate for #6458 by eric-wieser · Pull Request #7922 · numpy/numpy · GitHub
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ENH: Add ma.convolve and ma.correlate for #6458 #7922

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Merged
merged 4 commits into from
Oct 20, 2016
Merged

ENH: Add ma.convolve and ma.correlate for #6458 #7922

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3ebbbb0
ENH: Add ma.convolve and ma.correlate for #6458
eric-wieser Aug 9, 2016
cb52fd6
API: Rename contagious to propagate_mask
eric-wieser Oct 19, 2016
bf3fb26
DOC: correct ma.convolve docstrings, and add the feature to the relea…
eric-wieser Oct 19, 2016
4c2ad8a
BUG: Fix (and test) np.ma.convolve for raw lists
eric-wieser Oct 19, 2016
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BUG: Fix (and test) np.ma.convolve for raw lists
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@eric-wieser
eric-wieser committed Oct 19, 2016
commit 4c2ad8a4a23524f422f476c1596c973c4308e5da
4 changes: 2 additions & 2 deletions numpy/ma/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7373,8 +7373,8 @@ def _convolve_or_correlate(f, a, v, mode, propagate_mask):
if propagate_mask:
# results which are contributed to by either item in any pair being invalid
mask = (
f(getmaskarray(a), np.ones(v.shape, dtype=np.bool), mode=mode)
| f(np.ones(a.shape, dtype=np.bool), getmaskarray(v), mode=mode)
f(getmaskarray(a), np.ones(np.shape(v), dtype=np.bool), mode=mode)
| f(np.ones(np.shape(a), dtype=np.bool), getmaskarray(v), mode=mode)
)
data = f(getdata(a), getdata(v), mode=mode)
else:
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10 changes: 10 additions & 0 deletions numpy/ma/tests/test_core.py
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Expand Up @@ -4095,6 +4095,16 @@ def test_convolve(self):
test = np.ma.convolve(a, b, propagate_mask=False)
assert_equal(test, masked_equal([0, 1, 1, 3, 7, 4], -1))

test = np.ma.convolve([1, 1], [1, 1, 1])
assert_equal(test, masked_equal([1, 2, 2, 1], -1))

a = [1, 1]
b = masked_equal([1, -1, -1, 1], -1)
test = np.ma.convolve(a, b, propagate_mask=False)
assert_equal(test, masked_equal([1, 1, -1, 1, 1], -1))
test = np.ma.convolve(a, b, propagate_mask=True)
assert_equal(test, masked_equal([-1, -1, -1, -1, -1], -1))


class TestMaskedFields(TestCase):

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0