| 123456789101112131415161718192021222324252627282930313233 |
- import pandas as pd
- import pandas.util.testing as tm
- def test_getitem_callable():
- # GH 12533
- s = pd.Series(4, index=list('ABCD'))
- result = s[lambda x: 'A']
- assert result == s.loc['A']
- result = s[lambda x: ['A', 'B']]
- tm.assert_series_equal(result, s.loc[['A', 'B']])
- result = s[lambda x: [True, False, True, True]]
- tm.assert_series_equal(result, s.iloc[[0, 2, 3]])
- def test_setitem_callable():
- # GH 12533
- s = pd.Series([1, 2, 3, 4], index=list('ABCD'))
- s[lambda x: 'A'] = -1
- tm.assert_series_equal(s, pd.Series([-1, 2, 3, 4], index=list('ABCD')))
- def test_setitem_other_callable():
- # GH 13299
- inc = lambda x: x + 1
- s = pd.Series([1, 2, -1, 4])
- s[s < 0] = inc
- expected = pd.Series([1, 2, inc, 4])
- tm.assert_series_equal(s, expected)
|
