交易日历
原文： https://www.backtrader.com/blog/posts/2017-04-16-trading-calendar/tradingcalendar/
发布版1.9.42.116增加了对交易日历的支持。例如，在以下场景中重新采样时，这非常有用：
-
每日到每周的重新采样现在可以提供每周的酒吧和一周的最后一个酒吧。
这是因为交易日历可以提前确定本周的下一个交易日和最后一个交易日
-
当会话结束时间不是常规会话结束时间（可以指定给数据馈送）时，从每天到每天的重新采样
交易日历界面
有一个基类TradingCalendarBase，用作任何交易日历的基类。它定义了两（2）种必须重写的方法：
class TradingCalendarBase(with_metaclass(MetaParams, object)):
def _nextday(self, day):
'''
Returns the next trading day (datetime/date instance) after ``day``
(datetime/date instance) and the isocalendar components
The return value is a tuple with 2 components: (nextday, (y, w, d))
where (y, w, d)
'''
raise NotImplementedError
def schedule(self, day):
'''
Returns a tuple with the opening and closing times (``datetime.time``)
for the given ``date`` (``datetime/date`` instance)
'''
raise NotImplementedError
启动位置
PandasMarketCalendar
此实现基于一个整洁的包，该包是 Quantopian 提供的初始功能的衍生产品。软件包位于：熊猫市场日历，安装方便：
pip install pandas_market_calendars
该实现具有以下接口：
class PandasMarketCalendar(TradingCalendarBase):
'''
Wrapper of ``pandas_market_calendars`` for a trading calendar. The package
``pandas_market_calendar`` must be installed
Params:
- ``calendar`` (default ``None``)
The param ``calendar`` accepts the following:
- string: the name of one of the calendars supported, for example
`NYSE`. The wrapper will attempt to get a calendar instance
- calendar instance: as returned by ``get_calendar('NYSE')``
- ``cachesize`` (default ``365``)
Number of days to cache in advance for lookup
See also:
- https://github.com/rsheftel/pandas_market_calendars
- http://pandas-market-calendars.readthedocs.io/
'''
params = (
('calendar', None), # A pandas_market_calendars instance or exch name
('cachesize', 365), # Number of days to cache in advance
)
交易日历
此实现允许通过指定假日、开始日期、非交易工作日以及开盘和收盘时间，使用自行收集的信息构建日历：
class TradingCalendar(TradingCalendarBase):
'''
Wrapper of ``pandas_market_calendars`` for a trading calendar. The package
``pandas_market_calendar`` must be installed
Params:
- ``open`` (default ``time.min``)
Regular start of the session
- ``close`` (default ``time.max``)
Regular end of the session
- ``holidays`` (default ``[]``)
List of non-trading days (``datetime.datetime`` instances)
- ``earlydays`` (default ``[]``)
List of tuples determining the date and opening/closing times of days
which do not conform to the regular trading hours where each tuple has
(``datetime.datetime``, ``datetime.time``, ``datetime.time`` )
- ``offdays`` (default ``ISOWEEKEND``)
A list of weekdays in ISO format (Monday: 1 -> Sunday: 7) in which the
market doesn't trade. This is usually Saturday and Sunday and hence the
default
'''
params = (
('open', time.min),
('close', _time_max),
('holidays', []), # list of non trading days (date)
('earlydays', []), # list of tuples (date, opentime, closetime)
('offdays', ISOWEEKEND), # list of non trading (isoweekdays)
)
使用模式
全球贸易日历
通过Cerebro可以为所有数据源添加默认的全局日历，除非为数据源指定了一个日历：
def addcalendar(self, cal):
'''Adds a global trading calendar to the system. Individual data feeds
may have separate calendars which override the global one
``cal`` can be an instance of ``TradingCalendar`` a string or an
instance of ``pandas_market_calendars``. A string will be will be
instantiated as a ``PandasMarketCalendar`` (which needs the module
``pandas_market_calendar`` installed in the system.
If a subclass of `TradingCalendarBase` is passed (not an instance) it
will be instantiated
'''
每个数据源
按照addcalendar中所述的相同约定指定calendar参数。
例如：
...
data = bt.feeds.YahooFinanceData(dataname='YHOO', calendar='NYSE', ...)
cerebro.adddata(data)
...
例子
每日至每周
让我们看看下面的代码运行示例。2016 年，复活节星期五（2016-03-25）也是NYSE的一个节日。如果样本在没有交易日历的情况下运行，那么让我们看看该日期前后会发生什么。
在这种情况下，从每天到每周进行重新采样（使用YHOO和 2016 年的每日数据）：
$ ./tcal.py
...
Strategy len 56 datetime 2016-03-23 Data0 len 56 datetime 2016-03-23 Data1 len 11 datetime 2016-03-18
Strategy len 57 datetime 2016-03-24 Data0 len 57 datetime 2016-03-24 Data1 len 11 datetime 2016-03-18
Strategy len 58 datetime 2016-03-28 Data0 len 58 datetime 2016-03-28 Data1 len 12 datetime 2016-03-24
...
在该输出中，1st日期是策略进行的核算。第 2和第日期是每日的日期
如预期，本周将于 2016 年 3 月 24 日（星期四）结束，但如果没有交易日历，重采样代码将无法识别，并交付日期为 2016 年 3 月 18 日（前一周）的重采样条。当交易转到 2016-03-28（星期一）时，重采样器检测到周变化，并提供 2016-03-24 的重采样器。
相同，但在NYSE中使用PandasMarketCalendar（并添加一个绘图）
$ ./tcal.py --plot --pandascal NYSE
...
Strategy len 56 datetime 2016-03-23 Data0 len 56 datetime 2016-03-23 Data1 len 11 datetime 2016-03-18
Strategy len 57 datetime 2016-03-24 Data0 len 57 datetime 2016-03-24 Data1 len 12 datetime 2016-03-24
Strategy len 58 datetime 2016-03-28 Data0 len 58 datetime 2016-03-28 Data1 len 12 datetime 2016-03-24
...
有一个变化！多亏了日历，重采样器知道 2016-03-24 这一周结束了，并在同一天交付了 2016-03-24 相应的每周重采样条。
还有情节。
由于信息可能不一定适用于每个市场，因此也可以制作日历。对于NYSE和2016来说，它看起来像：
class NYSE_2016(bt.TradingCalendar):
params = dict(
holidays=[
datetime.date(2016, 1, 1),
datetime.date(2016, 1, 18),
datetime.date(2016, 2, 15),
datetime.date(2016, 3, 25),
datetime.date(2016, 5, 30),
datetime.date(2016, 7, 4),
datetime.date(2016, 9, 5),
datetime.date(2016, 11, 24),
datetime.date(2016, 12, 26),
]
)
复活节星期五（2016-03-25）被列为节假日之一。现在运行示例：
$ ./tcal.py --plot --owncal
...
Strategy len 56 datetime 2016-03-23 Data0 len 56 datetime 2016-03-23 Data1 len 11 datetime 2016-03-18
Strategy len 57 datetime 2016-03-24 Data0 len 57 datetime 2016-03-24 Data1 len 12 datetime 2016-03-24
Strategy len 58 datetime 2016-03-28 Data0 len 58 datetime 2016-03-28 Data1 len 12 datetime 2016-03-24
...
通过精心制作的日历定义也得到了同样的结果。
每天几分钟
利用一些私人日内数据和市场在 2016 年 11 月 25 日早盘收盘的知识（感恩节后的第二天，市场在US/Eastern时区 13:00 收盘），另一次测试运行，这次使用 2和样本。
笔记
源数据直接取自显示的数据，并且在CET时间内，即使相关资产YHOO在美国交易。数据馈送的代码中使用tzinput='CET'和tz='US/Eastern'，以便平台适当转换输入并显示输出
第一，没有交易日历
$ ./tcal-intra.py
...
Strategy len 6838 datetime 2016-11-25 18:00:00 Data0 len 6838 datetime 2016-11-25 13:00:00 Data1 len 21 datetime 2016-11-23 16:00:00
Strategy len 6839 datetime 2016-11-25 18:01:00 Data0 len 6839 datetime 2016-11-25 13:01:00 Data1 len 21 datetime 20 16-11-23 16:00:00
Strategy len 6840 datetime 2016-11-28 14:31:00 Data0 len 6840 datetime 2016-11-28 09:31:00 Data1 len 22 datetime 2016-11-25 16:00:00
Strategy len 6841 datetime 2016-11-28 14:32:00 Data0 len 6841 datetime 2016-11-28 09:32:00 Data1 len 22 datetime 2016-11-25 16:00:00
...
正如所料，当天在13:00提前结束，但重采样器不知道（正式会议在16:00结束），并从前一天（2016-11-23）开始继续交付重采样器，新的重采样器在下一个交易日（2016-11-28）首次交付，日期为 2016-11-25。
笔记
数据在13:01处有一个额外的分钟栏，这可能是由于拍卖过程在市场收盘时间后提供了最后一个价格。
我们可以向流中添加一个过滤器，以过滤掉会话时间之外的条（过滤器将从交易日历中找到）
但这不是这个样本的重点。
使用PandasMarketCalendar实例执行相同的运行：
$ ./tcal-intra.py --pandascal NYSE
...
Strategy len 6838 datetime 2016-11-25 18:00:00 Data0 len 6838 datetime 2016-11-25 13:00:00 Data1 len 15 datetime 2016-11-25 13:00:00
Strategy len 6839 datetime 2016-11-25 18:01:00 Data0 len 6839 datetime 2016-11-25 13:01:00 Data1 len 15 datetime 2016-11-25 13:00:00
Strategy len 6840 datetime 2016-11-28 14:31:00 Data0 len 6840 datetime 2016-11-28 09:31:00 Data1 len 15 datetime 2016-11-25 13:00:00
Strategy len 6841 datetime 2016-11-28 14:32:00 Data0 len 6841 datetime 2016-11-28 09:32:00 Data1 len 15 datetime 2016-11-25 13:00:00
...
现在，2016-11-25 的每日条形图是在当日 1 分钟提要在 13:00 到达 2016-11-25 时交付的（让我们忽略 13:01 条形图），因为交易日历告诉重新采样代码这一天已经结束。
让我们添加一个精心编制的定义。与前面相同，但扩展了一些earlydays
class NYSE_2016(bt.TradingCalendar):
params = dict(
holidays=[
datetime.date(2016, 1, 1),
datetime.date(2016, 1, 18),
datetime.date(2016, 2, 15),
datetime.date(2016, 3, 25),
datetime.date(2016, 5, 30),
datetime.date(2016, 7, 4),
datetime.date(2016, 9, 5),
datetime.date(2016, 11, 24),
datetime.date(2016, 12, 26),
],
earlydays=[
(datetime.date(2016, 11, 25),
datetime.time(9, 30), datetime.time(13, 1))
],
open=datetime.time(9, 30),
close=datetime.time(16, 0),
)
跑步：
$ ./tcal-intra.py --owncal
...
Strategy len 6838 datetime 2016-11-25 18:00:00 Data0 len 6838 datetime 2016-11-25 13:00:00 Data1 len 15 datetime 2016-11-23 16:00:00
Strategy len 6839 datetime 2016-11-25 18:01:00 Data0 len 6839 datetime 2016-11-25 13:01:00 Data1 len 16 datetime 2016-11-25 13:01:00
Strategy len 6840 datetime 2016-11-28 14:31:00 Data0 len 6840 datetime 2016-11-28 09:31:00 Data1 len 16 datetime 2016-11-25 13:01:00
Strategy len 6841 datetime 2016-11-28 14:32:00 Data0 len 6841 datetime 2016-11-28 09:32:00 Data1 len 16 datetime 2016-11-25 13:01:00
...
热心的读者会注意到，精心编制的定义包含将13:01（带datetime.time(13, 1)）定义为 2016-11-25 这短短一天的会议结束。这只是为了展示手工制作的TradingCalendar是如何帮助安装物品的。
现在，2016-11-25 的每日重采样酒吧与 1 分钟酒吧于 13:01 交付。
战略的额外奖金
第一个datetime，属于策略的那个，总是在不同的时区，实际上是UTC。此外，此版本1.9.42.116也可以同步。以下参数已添加到Cerebro（在实例化期间使用或与cerebro.run一起使用）
- ``tz`` (default: ``None``)
Adds a global timezone for strategies. The argument ``tz`` can be
- ``None``: in this case the datetime displayed by strategies will be
in UTC, which has been always the standard behavior
- ``pytz`` instance. It will be used as such to convert UTC times to
the chosen timezone
- ``string``. Instantiating a ``pytz`` instance will be attempted.
- ``integer``. Use, for the strategy, the same timezone as the
corresponding ``data`` in the ``self.datas`` iterable (``0`` would
use the timezone from ``data0``)
cerebro.addtz方法也支持：
def addtz(self, tz):
'''
This can also be done with the parameter ``tz``
Adds a global timezone for strategies. The argument ``tz`` can be
- ``None``: in this case the datetime displayed by strategies will be
in UTC, which has been always the standard behavior
- ``pytz`` instance. It will be used as such to convert UTC times to
the chosen timezone
- ``string``. Instantiating a ``pytz`` instance will be attempted.
- ``integer``. Use, for the strategy, the same timezone as the
corresponding ``data`` in the ``self.datas`` iterable (``0`` would
use the timezone from ``data0``)
'''
重复日内样本的最后一次运行，并对tz使用0（与data0时区同步），以下是聚焦于上述相同日期和时间的输出：
$ ./tcal-intra.py --owncal --cerebro tz=0
...
Strategy len 6838 datetime 2016-11-25 13:00:00 Data0 len 6838 datetime 2016-11-25 13:00:00 Data1 len 15 datetime 2016-11-23 16:00:00
Strategy len 6839 datetime 2016-11-25 13:01:00 Data0 len 6839 datetime 2016-11-25 13:01:00 Data1 len 16 datetime 2016-11-25 13:01:00
Strategy len 6840 datetime 2016-11-28 09:31:00 Data0 len 6840 datetime 2016-11-28 09:31:00 Data1 len 16 datetime 2016-11-25 13:01:00
Strategy len 6841 datetime 2016-11-28 09:32:00 Data0 len 6841 datetime 2016-11-28 09:32:00 Data1 len 16 datetime 2016-11-25 13:01:00
...
时间戳现在与时区对齐。
示例用法（tcal.py）
$ ./tcal.py --help
usage: tcal.py [-h] [--data0 DATA0] [--offline] [--fromdate FROMDATE]
[--todate TODATE] [--cerebro kwargs] [--broker kwargs]
[--sizer kwargs] [--strat kwargs] [--plot [kwargs]]
[--pandascal PANDASCAL | --owncal]
[--timeframe {Weeks,Months,Years}]
Trading Calendar Sample
optional arguments:
-h, --help show this help message and exit
--data0 DATA0 Data to read in (default: YHOO)
--offline Read from disk with same name as ticker (default:
False)
--fromdate FROMDATE Date[time] in YYYY-MM-DD[THH:MM:SS] format (default:
2016-01-01)
--todate TODATE Date[time] in YYYY-MM-DD[THH:MM:SS] format (default:
2016-12-31)
--cerebro kwargs kwargs in key=value format (default: )
--broker kwargs kwargs in key=value format (default: )
--sizer kwargs kwargs in key=value format (default: )
--strat kwargs kwargs in key=value format (default: )
--plot [kwargs] kwargs in key=value format (default: )
--pandascal PANDASCAL
Name of trading calendar to use (default: )
--owncal Apply custom NYSE 2016 calendar (default: False)
--timeframe {Weeks,Months,Years}
Timeframe to resample to (default: Weeks)
示例用法（tcal intra.py）
$ ./tcal-intra.py --help
usage: tcal-intra.py [-h] [--data0 DATA0] [--fromdate FROMDATE]
[--todate TODATE] [--cerebro kwargs] [--broker kwargs]
[--sizer kwargs] [--strat kwargs] [--plot [kwargs]]
[--pandascal PANDASCAL | --owncal] [--timeframe {Days}]
Trading Calendar Sample
optional arguments:
-h, --help show this help message and exit
--data0 DATA0 Data to read in (default: yhoo-2016-11.csv)
--fromdate FROMDATE Date[time] in YYYY-MM-DD[THH:MM:SS] format (default:
2016-01-01)
--todate TODATE Date[time] in YYYY-MM-DD[THH:MM:SS] format (default:
2016-12-31)
--cerebro kwargs kwargs in key=value format (default: )
--broker kwargs kwargs in key=value format (default: )
--sizer kwargs kwargs in key=value format (default: )
--strat kwargs kwargs in key=value format (default: )
--plot [kwargs] kwargs in key=value format (default: )
--pandascal PANDASCAL
Name of trading calendar to use (default: )
--owncal Apply custom NYSE 2016 calendar (default: False)
--timeframe {Days} Timeframe to resample to (default: Days)
示例代码（tcal.py）
from __future__ import (absolute_import, division, print_function,
unicode_literals)
import argparse
import datetime
import backtrader as bt
class NYSE_2016(bt.TradingCalendar):
params = dict(
holidays=[
datetime.date(2016, 1, 1),
datetime.date(2016, 1, 18),
datetime.date(2016, 2, 15),
datetime.date(2016, 3, 25),
datetime.date(2016, 5, 30),
datetime.date(2016, 7, 4),
datetime.date(2016, 9, 5),
datetime.date(2016, 11, 24),
datetime.date(2016, 12, 26),
]
)
class St(bt.Strategy):
params = dict(
)
def __init__(self):
pass
def start(self):
self.t0 = datetime.datetime.utcnow()
def stop(self):
t1 = datetime.datetime.utcnow()
print('Duration:', t1 - self.t0)
def prenext(self):
self.next()
def next(self):
print('Strategy len {} datetime {}'.format(
len(self), self.datetime.date()), end=' ')
print('Data0 len {} datetime {}'.format(
len(self.data0), self.data0.datetime.date()), end=' ')
if len(self.data1):
print('Data1 len {} datetime {}'.format(
len(self.data1), self.data1.datetime.date()))
else:
print()
def runstrat(args=None):
args = parse_args(args)
cerebro = bt.Cerebro()
# Data feed kwargs
kwargs = dict()
# Parse from/to-date
dtfmt, tmfmt = '%Y-%m-%d', 'T%H:%M:%S'
for a, d in ((getattr(args, x), x) for x in ['fromdate', 'todate']):
if a:
strpfmt = dtfmt + tmfmt * ('T' in a)
kwargs[d] = datetime.datetime.strptime(a, strpfmt)
YahooData = bt.feeds.YahooFinanceData
if args.offline:
YahooData = bt.feeds.YahooFinanceCSVData # change to read file
# Data feed
data0 = YahooData(dataname=args.data0, **kwargs)
cerebro.adddata(data0)
d1 = cerebro.resampledata(data0,
timeframe=getattr(bt.TimeFrame, args.timeframe))
d1.plotinfo.plotmaster = data0
d1.plotinfo.sameaxis = True
if args.pandascal:
cerebro.addcalendar(args.pandascal)
elif args.owncal:
cerebro.addcalendar(NYSE_2016)
# Broker
cerebro.broker = bt.brokers.BackBroker(**eval('dict(' + args.broker + ')'))
# Sizer
cerebro.addsizer(bt.sizers.FixedSize, **eval('dict(' + args.sizer + ')'))
# Strategy
cerebro.addstrategy(St, **eval('dict(' + args.strat + ')'))
# Execute
cerebro.run(**eval('dict(' + args.cerebro + ')'))
if args.plot: # Plot if requested to
cerebro.plot(**eval('dict(' + args.plot + ')'))
def parse_args(pargs=None):
parser = argparse.ArgumentParser(
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
description=(
'Trading Calendar Sample'
)
)
parser.add_argument('--data0', default='YHOO',
required=False, help='Data to read in')
parser.add_argument('--offline', required=False, action='store_true',
help='Read from disk with same name as ticker')
# Defaults for dates
parser.add_argument('--fromdate', required=False, default='2016-01-01',
help='Date[time] in YYYY-MM-DD[THH:MM:SS] format')
parser.add_argument('--todate', required=False, default='2016-12-31',
help='Date[time] in YYYY-MM-DD[THH:MM:SS] format')
parser.add_argument('--cerebro', required=False, default='',
metavar='kwargs', help='kwargs in key=value format')
parser.add_argument('--broker', required=False, default='',
metavar='kwargs', help='kwargs in key=value format')
parser.add_argument('--sizer', required=False, default='',
metavar='kwargs', help='kwargs in key=value format')
parser.add_argument('--strat', required=False, default='',
metavar='kwargs', help='kwargs in key=value format')
parser.add_argument('--plot', required=False, default='',
nargs='?', const='{}',
metavar='kwargs', help='kwargs in key=value format')
pgroup = parser.add_mutually_exclusive_group(required=False)
pgroup.add_argument('--pandascal', required=False, action='store',
default='', help='Name of trading calendar to use')
pgroup.add_argument('--owncal', required=False, action='store_true',
help='Apply custom NYSE 2016 calendar')
parser.add_argument('--timeframe', required=False, action='store',
default='Weeks', choices=['Weeks', 'Months', 'Years'],
help='Timeframe to resample to')
return parser.parse_args(pargs)
if __name__ == '__main__':
runstrat()
示例代码（tcal intra.py）
from __future__ import (absolute_import, division, print_function,
unicode_literals)
import argparse
import datetime
import backtrader as bt
class NYSE_2016(bt.TradingCalendar):
params = dict(
holidays=[
datetime.date(2016, 1, 1),
datetime.date(2016, 1, 18),
datetime.date(2016, 2, 15),
datetime.date(2016, 3, 25),
datetime.date(2016, 5, 30),
datetime.date(2016, 7, 4),
datetime.date(2016, 9, 5),
datetime.date(2016, 11, 24),
datetime.date(2016, 12, 26),
],
earlydays=[
(datetime.date(2016, 11, 25),
datetime.time(9, 30), datetime.time(13, 1))
],
open=datetime.time(9, 30),
close=datetime.time(16, 0),
)
class St(bt.Strategy):
params = dict(
)
def __init__(self):
pass
def prenext(self):
self.next()
def next(self):
print('Strategy len {} datetime {}'.format(
len(self), self.datetime.datetime()), end=' ')
print('Data0 len {} datetime {}'.format(
len(self.data0), self.data0.datetime.datetime()), end=' ')
if len(self.data1):
print('Data1 len {} datetime {}'.format(
len(self.data1), self.data1.datetime.datetime()))
else:
print()
def runstrat(args=None):
args = parse_args(args)
cerebro = bt.Cerebro()
# Data feed kwargs
# kwargs = dict(tz='US/Eastern')
# import pytz
# tz = tzinput = pytz.timezone('Europe/Berlin')
tzinput = 'Europe/Berlin'
# tz = tzinput
tz = 'US/Eastern'
kwargs = dict(tzinput=tzinput, tz=tz)
# Parse from/to-date
dtfmt, tmfmt = '%Y-%m-%d', 'T%H:%M:%S'
for a, d in ((getattr(args, x), x) for x in ['fromdate', 'todate']):
if a:
strpfmt = dtfmt + tmfmt * ('T' in a)
kwargs[d] = datetime.datetime.strptime(a, strpfmt)
# Data feed
data0 = bt.feeds.BacktraderCSVData(dataname=args.data0, **kwargs)
cerebro.adddata(data0)
d1 = cerebro.resampledata(data0,
timeframe=getattr(bt.TimeFrame, args.timeframe))
# d1.plotinfo.plotmaster = data0
# d1.plotinfo.sameaxis = False
if args.pandascal:
cerebro.addcalendar(args.pandascal)
elif args.owncal:
cerebro.addcalendar(NYSE_2016()) # or NYSE_2016() to pass an instance
# Broker
cerebro.broker = bt.brokers.BackBroker(**eval('dict(' + args.broker + ')'))
# Sizer
cerebro.addsizer(bt.sizers.FixedSize, **eval('dict(' + args.sizer + ')'))
# Strategy
cerebro.addstrategy(St, **eval('dict(' + args.strat + ')'))
# Execute
cerebro.run(**eval('dict(' + args.cerebro + ')'))
if args.plot: # Plot if requested to
cerebro.plot(**eval('dict(' + args.plot + ')'))
def parse_args(pargs=None):
parser = argparse.ArgumentParser(
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
description=(
'Trading Calendar Sample'
)
)
parser.add_argument('--data0', default='yhoo-2016-11.csv',
required=False, help='Data to read in')
# Defaults for dates
parser.add_argument('--fromdate', required=False, default='2016-01-01',
help='Date[time] in YYYY-MM-DD[THH:MM:SS] format')
parser.add_argument('--todate', required=False, default='2016-12-31',
help='Date[time] in YYYY-MM-DD[THH:MM:SS] format')
parser.add_argument('--cerebro', required=False, default='',
metavar='kwargs', help='kwargs in key=value format')
parser.add_argument('--broker', required=False, default='',
metavar='kwargs', help='kwargs in key=value format')
parser.add_argument('--sizer', required=False, default='',
metavar='kwargs', help='kwargs in key=value format')
parser.add_argument('--strat', required=False, default='',
metavar='kwargs', help='kwargs in key=value format')
parser.add_argument('--plot', required=False, default='',
nargs='?', const='{}',
metavar='kwargs', help='kwargs in key=value format')
pgroup = parser.add_mutually_exclusive_group(required=False)
pgroup.add_argument('--pandascal', required=False, action='store',
default='', help='Name of trading calendar to use')
pgroup.add_argument('--owncal', required=False, action='store_true',
help='Apply custom NYSE 2016 calendar')
parser.add_argument('--timeframe', required=False, action='store',
default='Days', choices=['Days'],
help='Timeframe to resample to')
return parser.parse_args(pargs)
if __name__ == '__main__':
runstrat()
