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ENH: Allow abs to work with PandasObjects #4821

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Merged
merged 1 commit into from
Sep 11, 2013
Merged

ENH: Allow abs to work with PandasObjects #4821

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3 changes: 3 additions & 0 deletions pandas/core/generic.py
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Original file line number Diff line number Diff line change
Expand Up @@ -560,6 +560,9 @@ def __nonzero__(self):

__bool__ = __nonzero__

def __abs__(self):
return self.abs()

#----------------------------------------------------------------------
# Array Interface

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2 changes: 2 additions & 0 deletions pandas/tests/test_frame.py
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Expand Up @@ -3234,9 +3234,11 @@ def test_operators_timedelta64(self):

# abs
result = diffs.abs()
result2 = abs(diffs)
expected = DataFrame(dict(A = df['A']-df['C'],
B = df['B']-df['A']))
assert_frame_equal(result,expected)
assert_frame_equal(result2, expected)

# mixed frame
mixed = diffs.copy()
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6 changes: 6 additions & 0 deletions pandas/tests/test_panel.py
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Expand Up @@ -355,18 +355,24 @@ def test_get_value(self):

def test_abs(self):
result = self.panel.abs()
result2 = abs(self.panel)
expected = np.abs(self.panel)
self.assert_panel_equal(result, expected)
self.assert_panel_equal(result2, expected)

df = self.panel['ItemA']
result = df.abs()
result2 = abs(df)
expected = np.abs(df)
assert_frame_equal(result, expected)
assert_frame_equal(result2, expected)

s = df['A']
result = s.abs()
result2 = abs(s)
expected = np.abs(s)
assert_series_equal(result, expected)
assert_series_equal(result2, expected)


class CheckIndexing(object):
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