def test_within_n_std():
df = pd.DataFrame({'A': np.arange(10), 'B': list('abcde') * 2})
tm.assert_frame_equal(df, ck.within_n_std(df))
tm.assert_frame_equal(df, dc.within_n_std()(_noop)(df))
with pytest.raises(AssertionError):
ck.within_n_std(df, .5)
with pytest.raises(AssertionError):
dc.within_n_std(.5)(_noop)(df)
def test_within_n_std():
df = pd.DataFrame({'A': np.arange(10)})
tm.assert_frame_equal(df, ck.within_n_std(df))
tm.assert_frame_equal(df, dc.within_n_std()(_noop)(df))
with pytest.raises(AssertionError):
ck.within_n_std(df, .5)
with pytest.raises(AssertionError):
dc.within_n_std(.5)(_noop)(df)