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| author | Julian Taylor <jtaylor.debian@googlemail.com> | 2014-08-24 17:54:35 +0200 |
|---|---|---|
| committer | Julian Taylor <jtaylor.debian@googlemail.com> | 2014-08-24 18:02:11 +0200 |
| commit | 040d0408f4cdb0a472e654acd68c8e1c3fbd84f7 (patch) | |
| tree | e1b98f4a9d56f6890522508108961d3887fa3288 /numpy/lib | |
| parent | bbb7c3fbcdc2ddfcf79317661be2b99b1f6617e3 (diff) | |
| download | numpy-040d0408f4cdb0a472e654acd68c8e1c3fbd84f7.tar.gz | |
BUG: don't overwrite input percentile arrays
Diffstat (limited to 'numpy/lib')
| -rw-r--r-- | numpy/lib/function_base.py | 2 | ||||
| -rw-r--r-- | numpy/lib/tests/test_function_base.py | 8 |
2 files changed, 9 insertions, 1 deletions
diff --git a/numpy/lib/function_base.py b/numpy/lib/function_base.py index 0a1d05f77..087d1cbb5 100644 --- a/numpy/lib/function_base.py +++ b/numpy/lib/function_base.py @@ -3031,7 +3031,7 @@ def percentile(a, q, axis=None, out=None, array([ 3.5]) """ - q = asarray(q, dtype=np.float64) + q = array(q, dtype=np.float64, copy=True) r, k = _ureduce(a, func=_percentile, q=q, axis=axis, out=out, overwrite_input=overwrite_input, interpolation=interpolation) diff --git a/numpy/lib/tests/test_function_base.py b/numpy/lib/tests/test_function_base.py index ee38b3573..f70d7dda0 100644 --- a/numpy/lib/tests/test_function_base.py +++ b/numpy/lib/tests/test_function_base.py @@ -1858,6 +1858,14 @@ class TestScoreatpercentile(TestCase): np.percentile(a, [50]) assert_equal(a, np.array([2, 3, 4, 1])) + def test_no_p_overwrite(self): + p = np.linspace(0., 100., num=5) + np.percentile(np.arange(100.), p, interpolation="midpoint") + assert_array_equal(p, np.linspace(0., 100., num=5)) + p = np.linspace(0., 100., num=5).tolist() + np.percentile(np.arange(100.), p, interpolation="midpoint") + assert_array_equal(p, np.linspace(0., 100., num=5).tolist()) + def test_percentile_overwrite(self): a = np.array([2, 3, 4, 1]) b = np.percentile(a, [50], overwrite_input=True) |