本文整理汇总了Python中pandas.tseries.frequencies.get_offset方法的典型用法代码示例。如果您正苦于以下问题：Python frequencies.get_offset方法的具体用法？Python frequencies.get_offset怎么用？Python frequencies.get_offset使用的例子？那么, 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.tseries.frequencies的用法示例。
在下文中一共展示了frequencies.get_offset方法的12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_get_offset
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_get_offset():
with pytest.raises(ValueError, match=INVALID_FREQ_ERR_MSG):
get_offset('gibberish')
with pytest.raises(ValueError, match=INVALID_FREQ_ERR_MSG):
get_offset('QS-JAN-B')
pairs = [
('B', BDay()), ('b', BDay()), ('bm', BMonthEnd()),
('Bm', BMonthEnd()), ('W-MON', Week(weekday=0)),
('W-TUE', Week(weekday=1)), ('W-WED', Week(weekday=2)),
('W-THU', Week(weekday=3)), ('W-FRI', Week(weekday=4))]
for name, expected in pairs:
offset = get_offset(name)
assert offset == expected, ("Expected %r to yield %r (actual: %r)" %
(name, expected, offset)) 示例2: test_legacy_offset_warnings
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_legacy_offset_warnings(self):
freqs = ['WEEKDAY', 'EOM', 'W@MON', 'W@TUE', 'W@WED', 'W@THU',
'W@FRI', 'W@SAT', 'W@SUN', 'Q@JAN', 'Q@FEB', 'Q@MAR',
'A@JAN', 'A@FEB', 'A@MAR', 'A@APR', 'A@MAY', 'A@JUN',
'A@JUL', 'A@AUG', 'A@SEP', 'A@OCT', 'A@NOV', 'A@DEC',
'Y@JAN', 'WOM@1MON', 'WOM@2MON', 'WOM@3MON',
'WOM@4MON', 'WOM@1TUE', 'WOM@2TUE', 'WOM@3TUE',
'WOM@4TUE', 'WOM@1WED', 'WOM@2WED', 'WOM@3WED',
'WOM@4WED', 'WOM@1THU', 'WOM@2THU', 'WOM@3THU',
'WOM@4THU', 'WOM@1FRI', 'WOM@2FRI', 'WOM@3FRI',
'WOM@4FRI']
msg = INVALID_FREQ_ERR_MSG
for freq in freqs:
with pytest.raises(ValueError, match=msg):
frequencies.get_offset(freq)
with pytest.raises(ValueError, match=msg):
date_range('2011-01-01', periods=5, freq=freq) 示例3: test_get_offset
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_get_offset():
with tm.assert_raises_regex(ValueError, _INVALID_FREQ_ERROR):
get_offset('gibberish')
with tm.assert_raises_regex(ValueError, _INVALID_FREQ_ERROR):
get_offset('QS-JAN-B')
pairs = [
('B', BDay()), ('b', BDay()), ('bm', BMonthEnd()),
('Bm', BMonthEnd()), ('W-MON', Week(weekday=0)),
('W-TUE', Week(weekday=1)), ('W-WED', Week(weekday=2)),
('W-THU', Week(weekday=3)), ('W-FRI', Week(weekday=4))]
for name, expected in pairs:
offset = get_offset(name)
assert offset == expected, ("Expected %r to yield %r (actual: %r)" %
(name, expected, offset)) 示例4: test_legacy_offset_warnings
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_legacy_offset_warnings(self):
freqs = ['WEEKDAY', 'EOM', 'W@MON', 'W@TUE', 'W@WED', 'W@THU',
'W@FRI', 'W@SAT', 'W@SUN', 'Q@JAN', 'Q@FEB', 'Q@MAR',
'A@JAN', 'A@FEB', 'A@MAR', 'A@APR', 'A@MAY', 'A@JUN',
'A@JUL', 'A@AUG', 'A@SEP', 'A@OCT', 'A@NOV', 'A@DEC',
'Y@JAN', 'WOM@1MON', 'WOM@2MON', 'WOM@3MON',
'WOM@4MON', 'WOM@1TUE', 'WOM@2TUE', 'WOM@3TUE',
'WOM@4TUE', 'WOM@1WED', 'WOM@2WED', 'WOM@3WED',
'WOM@4WED', 'WOM@1THU', 'WOM@2THU', 'WOM@3THU',
'WOM@4THU', 'WOM@1FRI', 'WOM@2FRI', 'WOM@3FRI',
'WOM@4FRI']
msg = _INVALID_FREQ_ERROR
for freq in freqs:
with tm.assert_raises_regex(ValueError, msg):
frequencies.get_offset(freq)
with tm.assert_raises_regex(ValueError, msg):
date_range('2011-01-01', periods=5, freq=freq) 示例5: test_legacy_offset_warnings
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_legacy_offset_warnings(self):
freqs = ['WEEKDAY', 'EOM', 'W@MON', 'W@TUE', 'W@WED', 'W@THU',
'W@FRI', 'W@SAT', 'W@SUN', 'Q@JAN', 'Q@FEB', 'Q@MAR',
'A@JAN', 'A@FEB', 'A@MAR', 'A@APR', 'A@MAY', 'A@JUN',
'A@JUL', 'A@AUG', 'A@SEP', 'A@OCT', 'A@NOV', 'A@DEC',
'Y@JAN', 'WOM@1MON', 'WOM@2MON', 'WOM@3MON',
'WOM@4MON', 'WOM@1TUE', 'WOM@2TUE', 'WOM@3TUE',
'WOM@4TUE', 'WOM@1WED', 'WOM@2WED', 'WOM@3WED',
'WOM@4WED', 'WOM@1THU', 'WOM@2THU', 'WOM@3THU',
'WOM@4THU', 'WOM@1FRI', 'WOM@2FRI', 'WOM@3FRI',
'WOM@4FRI']
msg = frequencies._INVALID_FREQ_ERROR
for freq in freqs:
with tm.assert_raises_regex(ValueError, msg):
frequencies.get_offset(freq)
with tm.assert_raises_regex(ValueError, msg):
date_range('2011-01-01', periods=5, freq=freq) 示例6: test_offset_freqstr
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_offset_freqstr(self, offset_types):
offset = self._get_offset(offset_types)
freqstr = offset.freqstr
if freqstr not in ('<Easter>',
"<DateOffset: days=1>",
'LWOM-SAT', ):
code = get_offset(freqstr)
assert offset.rule_code == code 示例7: test_get_offset_legacy
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_get_offset_legacy():
pairs = [('w@Sat', Week(weekday=5))]
for name, expected in pairs:
with pytest.raises(ValueError, match=INVALID_FREQ_ERR_MSG):
get_offset(name) 示例8: test_rule_code
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_rule_code(self):
lst = ['M', 'MS', 'BM', 'BMS', 'D', 'B', 'H', 'T', 'S', 'L', 'U']
for k in lst:
assert k == get_offset(k).rule_code
# should be cached - this is kind of an internals test...
assert k in _offset_map
assert k == (get_offset(k) * 3).rule_code
suffix_lst = ['MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT', 'SUN']
base = 'W'
for v in suffix_lst:
alias = '-'.join([base, v])
assert alias == get_offset(alias).rule_code
assert alias == (get_offset(alias) * 5).rule_code
suffix_lst = ['JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN', 'JUL', 'AUG',
'SEP', 'OCT', 'NOV', 'DEC']
base_lst = ['A', 'AS', 'BA', 'BAS', 'Q', 'QS', 'BQ', 'BQS']
for base in base_lst:
for v in suffix_lst:
alias = '-'.join([base, v])
assert alias == get_offset(alias).rule_code
assert alias == (get_offset(alias) * 5).rule_code
lst = ['M', 'D', 'B', 'H', 'T', 'S', 'L', 'U']
for k in lst:
code, stride = get_freq_code('3' + k)
assert isinstance(code, int)
assert stride == 3
assert k == get_freq_str(code) 示例9: test_str_for_named_is_name
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_str_for_named_is_name(self):
# look at all the amazing combinations!
month_prefixes = ['A', 'AS', 'BA', 'BAS', 'Q', 'BQ', 'BQS', 'QS']
names = [prefix + '-' + month
for prefix in month_prefixes
for month in ['JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN', 'JUL',
'AUG', 'SEP', 'OCT', 'NOV', 'DEC']]
days = ['MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT', 'SUN']
names += ['W-' + day for day in days]
names += ['WOM-' + week + day
for week in ('1', '2', '3', '4') for day in days]
_offset_map.clear()
for name in names:
offset = get_offset(name)
assert offset.freqstr == name 示例10: test_ms_vs_MS
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_ms_vs_MS():
left = frequencies.get_offset('ms')
right = frequencies.get_offset('MS')
assert left == offsets.Milli()
assert right == offsets.MonthBegin() 示例11: test_get_offset_legacy
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def test_get_offset_legacy():
pairs = [('w@Sat', Week(weekday=5))]
for name, expected in pairs:
with tm.assert_raises_regex(ValueError, _INVALID_FREQ_ERROR):
get_offset(name) 示例12: _make_offset
# 需要导入模块: from pandas.tseries import frequencies [as 别名]
# 或者: from pandas.tseries.frequencies import get_offset [as 别名]
def _make_offset(key):
"""Gets offset based on key. KeyError if prefix is bad, ValueError if
suffix is bad. All handled by `get_offset` in tseries/frequencies. Not
public."""
if key is None:
return None
split = key.replace('@', '-').split('-')
klass = prefix_mapping[split[0]]
# handles case where there's no suffix (and will TypeError if too many '-')
obj = klass._from_name(*split[1:])
obj._named = key
return obj