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Diffstat (limited to 'numpy/ma/tests/test_regression.py')
| -rw-r--r-- | numpy/ma/tests/test_regression.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/numpy/ma/tests/test_regression.py b/numpy/ma/tests/test_regression.py index f713a8a1a..eb301aa05 100644 --- a/numpy/ma/tests/test_regression.py +++ b/numpy/ma/tests/test_regression.py @@ -61,6 +61,14 @@ class TestRegression(TestCase): a.var(out=mout) assert_(mout._data == 0) + def test_ddof_corrcoef(self): + # See gh-3336 + x = np.ma.masked_equal([1,2,3,4,5], 4) + y = np.array([2,2.5,3.1,3,5]) + r0 = np.ma.corrcoef(x, y, ddof=0) + r1 = np.ma.corrcoef(x, y, ddof=1) + # ddof should not have an effect (it gets cancelled out) + assert_allclose(r0.data, r1.data) if __name__ == "__main__": run_module_suite() |