Crea un calendario di festività con Pandas

Question

Sto provando a creare un calendario di trading usando Pandas. Sono in grado di creare un'istanza cal basata sul USFederalHolidayCalendar. L'USFederalHolidayCalendar non è coerente con il calendario di Trading in quanto il calendario di Trading non include Columbus Day e Veteran's Day. Tuttavia, il calendario delle negoziazioni include il Venerdì Santo (non incluso negli USFederalHolidayCalendar). Tutto tranne per l'ultima riga di codice seguente funziona:

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) 

L'istanza tradingCal sembra funzionare in che io sono in grado di visualizzare le regole per vacanze.

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)}>)] 

Quando provo ad elencare le vacanze in un intervallo di date, ho il seguente errore:

In[11]: tradingCal.holidays(datetime(2014, 12, 31), datetime(2016, 12, 31)) 
Traceback (most recent call last): 
    File "C:\Python27\lib\site-packages\IPython\core\interactiveshell.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) 

Tutte le idee?

Answer 1

Forse è più semplice per creare il calendario commercio da zero, in questo modo:

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) 

Answer 2

È necessario creare una nuova istanza di classe: cal1 = tradingCal(). Questo funziona per me.

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) 

Answer 3

Se aiuta, ho avuto una simile esigenza per i calendari di contrattazione. C'era un codice eccellente sepolto nel progetto Zipline di Quantopian. Ho estratto la parte rilevante e ho creato un nuovo progetto per creare calendari commerciali di scambio di mercato in panda. I collegamenti sono qui, con alcune delle funzionalità descritte di seguito.

https://github.com/rsheftel/pandas_market_calendars

https://pypi.python.org/pypi/pandas-market-calendars

Ecco che cosa può fare con la creazione di un DatetimeIndex panda di tutti gli orari di apertura validi per il NYSE:

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) 

Se si desidera solo per ottenere il Calendario vacanze panda che può essere utilizzato in altre funzioni panda che lo considerano come argomento:

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'))