本文整理汇总了Python中pandas.offsets.MonthEnd方法的典型用法代码示例。如果您正苦于以下问题：Python offsets.MonthEnd方法的具体用法？Python offsets.MonthEnd怎么用？Python offsets.MonthEnd使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pandas.offsets的用法示例。
在下文中一共展示了offsets.MonthEnd方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_period_cons_mult
# 需要导入模块: from pandas import offsets [as 别名]
# 或者: from pandas.offsets import MonthEnd [as 别名]
def test_period_cons_mult(self):
p1 = Period('2011-01', freq='3M')
p2 = Period('2011-01', freq='M')
assert p1.ordinal == p2.ordinal
assert p1.freq == offsets.MonthEnd(3)
assert p1.freqstr == '3M'
assert p2.freq == offsets.MonthEnd()
assert p2.freqstr == 'M'
result = p1 + 1
assert result.ordinal == (p2 + 3).ordinal
assert result.freq == p1.freq
assert result.freqstr == '3M'
result = p1 - 1
assert result.ordinal == (p2 - 3).ordinal
assert result.freq == p1.freq
assert result.freqstr == '3M'
msg = ('Frequency must be positive, because it'
' represents span: -3M')
with pytest.raises(ValueError, match=msg):
Period('2011-01', freq='-3M')
msg = ('Frequency must be positive, because it' ' represents span: 0M')
with pytest.raises(ValueError, match=msg):
Period('2011-01', freq='0M') 示例2: test_period_cons_mult
# 需要导入模块: from pandas import offsets [as 别名]
# 或者: from pandas.offsets import MonthEnd [as 别名]
def test_period_cons_mult(self):
p1 = Period('2011-01', freq='3M')
p2 = Period('2011-01', freq='M')
assert p1.ordinal == p2.ordinal
assert p1.freq == offsets.MonthEnd(3)
assert p1.freqstr == '3M'
assert p2.freq == offsets.MonthEnd()
assert p2.freqstr == 'M'
result = p1 + 1
assert result.ordinal == (p2 + 3).ordinal
assert result.freq == p1.freq
assert result.freqstr == '3M'
result = p1 - 1
assert result.ordinal == (p2 - 3).ordinal
assert result.freq == p1.freq
assert result.freqstr == '3M'
msg = ('Frequency must be positive, because it'
' represents span: -3M')
with tm.assert_raises_regex(ValueError, msg):
Period('2011-01', freq='-3M')
msg = ('Frequency must be positive, because it' ' represents span: 0M')
with tm.assert_raises_regex(ValueError, msg):
Period('2011-01', freq='0M') 示例3: test_sub_offset
# 需要导入模块: from pandas import offsets [as 别名]
# 或者: from pandas.offsets import MonthEnd [as 别名]
def test_sub_offset(self):
# freq is DateOffset
for freq in ['A', '2A', '3A']:
p = Period('2011', freq=freq)
assert p - offsets.YearEnd(2) == Period('2009', freq=freq)
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(365, 'D'),
timedelta(365)]:
with pytest.raises(period.IncompatibleFrequency):
p - o
for freq in ['M', '2M', '3M']:
p = Period('2011-03', freq=freq)
assert p - offsets.MonthEnd(2) == Period('2011-01', freq=freq)
assert p - offsets.MonthEnd(12) == Period('2010-03', freq=freq)
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(365, 'D'),
timedelta(365)]:
with pytest.raises(period.IncompatibleFrequency):
p - o
# freq is Tick
for freq in ['D', '2D', '3D']:
p = Period('2011-04-01', freq=freq)
assert p - offsets.Day(5) == Period('2011-03-27', freq=freq)
assert p - offsets.Hour(24) == Period('2011-03-31', freq=freq)
assert p - np.timedelta64(2, 'D') == Period(
'2011-03-30', freq=freq)
assert p - np.timedelta64(3600 * 24, 's') == Period(
'2011-03-31', freq=freq)
assert p - timedelta(-2) == Period('2011-04-03', freq=freq)
assert p - timedelta(hours=48) == Period('2011-03-30', freq=freq)
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(4, 'h'),
timedelta(hours=23)]:
with pytest.raises(period.IncompatibleFrequency):
p - o
for freq in ['H', '2H', '3H']:
p = Period('2011-04-01 09:00', freq=freq)
assert p - offsets.Day(2) == Period('2011-03-30 09:00', freq=freq)
assert p - offsets.Hour(3) == Period('2011-04-01 06:00', freq=freq)
assert p - np.timedelta64(3, 'h') == Period(
'2011-04-01 06:00', freq=freq)
assert p - np.timedelta64(3600, 's') == Period(
'2011-04-01 08:00', freq=freq)
assert p - timedelta(minutes=120) == Period(
'2011-04-01 07:00', freq=freq)
assert p - timedelta(days=4, minutes=180) == Period(
'2011-03-28 06:00', freq=freq)
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(3200, 's'),
timedelta(hours=23, minutes=30)]:
with pytest.raises(period.IncompatibleFrequency):
p - o 示例4: test_sub_offset_nat
# 需要导入模块: from pandas import offsets [as 别名]
# 或者: from pandas.offsets import MonthEnd [as 别名]
def test_sub_offset_nat(self):
# freq is DateOffset
for freq in ['A', '2A', '3A']:
p = Period('NaT', freq=freq)
for o in [offsets.YearEnd(2)]:
assert p - o is NaT
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(365, 'D'),
timedelta(365)]:
assert p - o is NaT
for freq in ['M', '2M', '3M']:
p = Period('NaT', freq=freq)
for o in [offsets.MonthEnd(2), offsets.MonthEnd(12)]:
assert p - o is NaT
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(365, 'D'),
timedelta(365)]:
assert p - o is NaT
# freq is Tick
for freq in ['D', '2D', '3D']:
p = Period('NaT', freq=freq)
for o in [offsets.Day(5), offsets.Hour(24), np.timedelta64(2, 'D'),
np.timedelta64(3600 * 24, 's'), timedelta(-2),
timedelta(hours=48)]:
assert p - o is NaT
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(4, 'h'),
timedelta(hours=23)]:
assert p - o is NaT
for freq in ['H', '2H', '3H']:
p = Period('NaT', freq=freq)
for o in [offsets.Day(2), offsets.Hour(3), np.timedelta64(3, 'h'),
np.timedelta64(3600, 's'), timedelta(minutes=120),
timedelta(days=4, minutes=180)]:
assert p - o is NaT
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(3200, 's'),
timedelta(hours=23, minutes=30)]:
assert p - o is NaT 示例5: test_sub_offset_nat
# 需要导入模块: from pandas import offsets [as 别名]
# 或者: from pandas.offsets import MonthEnd [as 别名]
def test_sub_offset_nat(self):
# freq is DateOffset
for freq in ['A', '2A', '3A']:
p = Period('NaT', freq=freq)
for o in [offsets.YearEnd(2)]:
assert p - o is tslib.NaT
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(365, 'D'),
timedelta(365)]:
assert p - o is tslib.NaT
for freq in ['M', '2M', '3M']:
p = Period('NaT', freq=freq)
for o in [offsets.MonthEnd(2), offsets.MonthEnd(12)]:
assert p - o is tslib.NaT
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(365, 'D'),
timedelta(365)]:
assert p - o is tslib.NaT
# freq is Tick
for freq in ['D', '2D', '3D']:
p = Period('NaT', freq=freq)
for o in [offsets.Day(5), offsets.Hour(24), np.timedelta64(2, 'D'),
np.timedelta64(3600 * 24, 's'), timedelta(-2),
timedelta(hours=48)]:
assert p - o is tslib.NaT
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(4, 'h'),
timedelta(hours=23)]:
assert p - o is tslib.NaT
for freq in ['H', '2H', '3H']:
p = Period('NaT', freq=freq)
for o in [offsets.Day(2), offsets.Hour(3), np.timedelta64(3, 'h'),
np.timedelta64(3600, 's'), timedelta(minutes=120),
timedelta(days=4, minutes=180)]:
assert p - o is tslib.NaT
for o in [offsets.YearBegin(2), offsets.MonthBegin(1),
offsets.Minute(), np.timedelta64(3200, 's'),
timedelta(hours=23, minutes=30)]:
assert p - o is tslib.NaT