test_period.py 文件源码

def test_pindex_multiples(self):
        pi = PeriodIndex(start='1/1/11', end='12/31/11', freq='2M')
        expected = PeriodIndex(['2011-01', '2011-03', '2011-05', '2011-07',
                                '2011-09', '2011-11'], freq='M')
        tm.assert_index_equal(pi, expected)
        self.assertEqual(pi.freq, offsets.MonthEnd(2))
        self.assertEqual(pi.freqstr, '2M')

        pi = period_range(start='1/1/11', end='12/31/11', freq='2M')
        tm.assert_index_equal(pi, expected)
        self.assertEqual(pi.freq, offsets.MonthEnd(2))
        self.assertEqual(pi.freqstr, '2M')

        pi = period_range(start='1/1/11', periods=6, freq='2M')
        tm.assert_index_equal(pi, expected)
        self.assertEqual(pi.freq, offsets.MonthEnd(2))
        self.assertEqual(pi.freqstr, '2M')