我正在尝试使用Pandas创建一个交易日历。我能够基于USFederalHolidayCalendar创建一个cal实例。美国联邦假日日历与交易日历不一致,因为交易日历不包括哥伦布日和退伍军人节。然而,交易日历包括耶稣受难日(不包括在美国联邦假日日历)。以下代码中除了最后一行以外的所有内容都可以工作:
from pandas.tseries.holiday import get_calendar, HolidayCalendarFactory, GoodFriday
from datetime import datetime
cal = get_calendar('USFederalHolidayCalendar') # Create calendar instance
cal.rules.pop(7) # Remove Veteran's Day rule
cal.rules.pop(6) # Remove Columbus Day rule
tradingCal = HolidayCalendarFactory('TradingCalendar', cal, GoodFriday)
tradingCal实例似乎可以工作,因为我可以查看Holiday规则。
In[10]: tradingCal.rules
Out[10]:
[Holiday: Labor Day (month=9, day=1, offset=<DateOffset: kwds={'weekday': MO(+1)}>),
Holiday: Presidents Day (month=2, day=1, offset=<DateOffset: kwds={'weekday': MO(+3)}>),
Holiday: Good Friday (month=1, day=1, offset=[<Easter>, <-2 * Days>]),
Holiday: Dr. Martin Luther King Jr. (month=1, day=1, offset=<DateOffset: kwds={'weekday': MO(+3)}>),
Holiday: New Years Day (month=1, day=1, observance=<function nearest_workday at 0x000000000A190BA8>),
Holiday: Thanksgiving (month=11, day=1, offset=<DateOffset: kwds={'weekday': TH(+4)}>),
Holiday: July 4th (month=7, day=4, observance=<function nearest_workday at 0x000000000A190BA8>),
Holiday: Christmas (month=12, day=25, observance=<function nearest_workday at 0x000000000A190BA8>),
Holiday: MemorialDay (month=5, day=31, offset=<DateOffset: kwds={'weekday': MO(-1)}>)]
当我尝试列出日期范围中的假日时,我得到以下错误:
In[11]: tradingCal.holidays(datetime(2014, 12, 31), datetime(2016, 12, 31))
Traceback (most recent call last):
File "C:Python27libsite-packagesIPythoncoreinteractiveshell.py", line 3035, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "<ipython-input-12-2708cd2db7a0>", line 1, in <module>
tradingCal.holidays(datetime(2014, 12, 31), datetime(2016, 12, 31))
TypeError: unbound method holidays() must be called with TradingCalendar instance as first argument (got datetime instance instead)
任何想法?
也许从头开始创建交易日历更直接,如下所示:
import datetime as dt
from pandas.tseries.holiday import AbstractHolidayCalendar, Holiday, nearest_workday,
USMartinLutherKingJr, USPresidentsDay, GoodFriday, USMemorialDay,
USLaborDay, USThanksgivingDay
class USTradingCalendar(AbstractHolidayCalendar):
rules = [
Holiday('NewYearsDay', month=1, day=1, observance=nearest_workday),
USMartinLutherKingJr,
USPresidentsDay,
GoodFriday,
USMemorialDay,
Holiday('USIndependenceDay', month=7, day=4, observance=nearest_workday),
USLaborDay,
USThanksgivingDay,
Holiday('Christmas', month=12, day=25, observance=nearest_workday)
]
def get_trading_close_holidays(year):
inst = USTradingCalendar()
return inst.holidays(dt.datetime(year-1, 12, 31), dt.datetime(year, 12, 31))
if __name__ == '__main__':
print(get_trading_close_holidays(2016))
# DatetimeIndex(['2016-01-01', '2016-01-18', '2016-02-15', '2016-03-25',
# '2016-05-30', '2016-07-04', '2016-09-05', '2016-11-24',
# '2016-12-26'],
# dtype='datetime64[ns]', freq=None)
如果有帮助的话,我对交易所交易日历也有类似的需求。Quantopian的Zipline项目中隐藏着一些优秀的代码。我提取出相关的部分,并创建了一个新的项目,用于创建市场交换交易日历在熊猫。链接在这里,其中一些功能如下所述。
https://github.com/rsheftel/pandas_market_calendars https://pypi.python.org/pypi/pandas-market-calendars通过创建一个包含纽约证券交易所所有有效开放时间的pandas DatetimeIndex,它可以这样做:
import pandas_market_calendars as mcal
nyse = mcal.get_calendar('NYSE')
early = nyse.schedule(start_date='2012-07-01', end_date='2012-07-10')
early
market_open market_close
=========== ========================= =========================
2012-07-02 2012-07-02 13:30:00+00:00 2012-07-02 20:00:00+00:00
2012-07-03 2012-07-03 13:30:00+00:00 2012-07-03 17:00:00+00:00
2012-07-05 2012-07-05 13:30:00+00:00 2012-07-05 20:00:00+00:00
2012-07-06 2012-07-06 13:30:00+00:00 2012-07-06 20:00:00+00:00
2012-07-09 2012-07-09 13:30:00+00:00 2012-07-09 20:00:00+00:00
2012-07-10 2012-07-10 13:30:00+00:00 2012-07-10 20:00:00+00:00
mcal.date_range(early, frequency='1D')
DatetimeIndex(['2012-07-02 20:00:00+00:00', '2012-07-03 17:00:00+00:00',
'2012-07-05 20:00:00+00:00', '2012-07-06 20:00:00+00:00',
'2012-07-09 20:00:00+00:00', '2012-07-10 20:00:00+00:00'],
dtype='datetime64[ns, UTC]', freq=None)
mcal.date_range(early, frequency='1H')
DatetimeIndex(['2012-07-02 14:30:00+00:00', '2012-07-02 15:30:00+00:00',
'2012-07-02 16:30:00+00:00', '2012-07-02 17:30:00+00:00',
'2012-07-02 18:30:00+00:00', '2012-07-02 19:30:00+00:00',
'2012-07-02 20:00:00+00:00', '2012-07-03 14:30:00+00:00',
'2012-07-03 15:30:00+00:00', '2012-07-03 16:30:00+00:00',
'2012-07-03 17:00:00+00:00', '2012-07-05 14:30:00+00:00',
'2012-07-05 15:30:00+00:00', '2012-07-05 16:30:00+00:00',
'2012-07-05 17:30:00+00:00', '2012-07-05 18:30:00+00:00',
'2012-07-05 19:30:00+00:00', '2012-07-05 20:00:00+00:00',
'2012-07-06 14:30:00+00:00', '2012-07-06 15:30:00+00:00',
'2012-07-06 16:30:00+00:00', '2012-07-06 17:30:00+00:00',
'2012-07-06 18:30:00+00:00', '2012-07-06 19:30:00+00:00',
'2012-07-06 20:00:00+00:00', '2012-07-09 14:30:00+00:00',
'2012-07-09 15:30:00+00:00', '2012-07-09 16:30:00+00:00',
'2012-07-09 17:30:00+00:00', '2012-07-09 18:30:00+00:00',
'2012-07-09 19:30:00+00:00', '2012-07-09 20:00:00+00:00',
'2012-07-10 14:30:00+00:00', '2012-07-10 15:30:00+00:00',
'2012-07-10 16:30:00+00:00', '2012-07-10 17:30:00+00:00',
'2012-07-10 18:30:00+00:00', '2012-07-10 19:30:00+00:00',
'2012-07-10 20:00:00+00:00'],
dtype='datetime64[ns, UTC]', freq=None)
如果您只是想获得熊猫假日日历,可以在其他熊猫函数中使用它作为参数:
holidays = nyse.holidays()
holidays.holidays[-5:]
(numpy.datetime64('2030-05-27'),
numpy.datetime64('2030-07-04'),
numpy.datetime64('2030-09-02'),
numpy.datetime64('2030-11-28'),
numpy.datetime64('2030-12-25'))
您必须创建新的类实例:cal1 = tradingCal()
。这对我很有用。
from pandas.tseries.holiday import get_calendar, HolidayCalendarFactory, GoodFriday
from datetime import datetime
cal = get_calendar('USFederalHolidayCalendar') # Create calendar instance
cal.rules.pop(7) # Remove Veteran's Day rule
cal.rules.pop(6) # Remove Columbus Day rule
tradingCal = HolidayCalendarFactory('TradingCalendar', cal, GoodFriday)
print tradingCal.rules
#new instance of class
cal1 = tradingCal()
print cal1.holidays(datetime(2014, 12, 31), datetime(2016, 12, 31))
#DatetimeIndex(['2015-01-01', '2015-01-19', '2015-02-16', '2015-04-03',
# '2015-05-25', '2015-07-03', '2015-09-07', '2015-11-26',
# '2015-12-25', '2016-01-01', '2016-01-18', '2016-02-15',
# '2016-03-25', '2016-05-30', '2016-07-04', '2016-09-05',
# '2016-11-24', '2016-12-26'],
# dtype='datetime64[ns]', freq=None, tz=None)
我采用了一种稍微不同的方法,使用相同的包:
https://pandas-market-calendars.readthedocs.io/en/latest/usage.html exchange-open-valid-business-days
import calendar
from datetime import timedelta
import pandas_market_calendars as mcal
nyse = mcal.get_calendar('NYSE')
days = nyse.valid_days(start_date=today, end_date=today + timedelta(days=60))
if dt in days:
print('ok')
所以只要拿到你的清单,检查你的交易日期是否合适,然后继续。