我正在使用 pyalgotrade 编写交易算法。我得到了上面的错误,似乎无法修复它。我正在尝试使用“SLOW STOCHASTIC”,非常感谢您对解决此错误和让慢速随机指标起作用的任何帮助:
错误:
C:\Users\...\Desktop>python bobo.py
Traceback (most recent call last):
File "bobo.py", line 114, in <module>
main()
File "bobo.py", line 110, in main
run_strategy(10,inst,2,14,5,2,3)
File "bobo.py", line 102, in run_strategy
myStrategy = MyStrategy(feed, inst, smaPeriod,emaPeriod,rsiPeriod,fastk_period,slowk_period,slowd_period)
File "bobo.py", line 26, in __init__
self.__stoch = indicator.STOCH(self.__prices,fastk_period,slowk_period,slowd_period)
File "C:\Users\...\Anaconda2\lib\site-packages\pyalgotrade\talibext\indicator.py", line 803, in STOCH
ret = call_talib_with_hlc(barDs, count, talib.STOCH, fastk_period, slowk_period, slowk_matype, slowd_period, slowd_matype)
File "C:\Users\...\Anaconda2\lib\site-packages\pyalgotrade\talibext\indicator.py", line 93, in call_talib_with_hlc
high = bar_ds_high_to_numpy(barDs, count)
File "C:\Users\...\Anaconda2\lib\site-packages\pyalgotrade\talibext\indicator.py", line 45, in bar_ds_high_to_numpy
return value_ds_to_numpy(barDs.getHighDataSeries(), count)
AttributeError: 'SequenceDataSeries' object has no attribute 'getHighDataSeries'
代码:
from pyalgotrade.tools import yahoofinance
from pyalgotrade import strategy
from pyalgotrade.barfeed import yahoofeed
from pyalgotrade.technical import stoch
from pyalgotrade import dataseries
from pyalgotrade.technical import ma
from pyalgotrade import technical
from pyalgotrade.technical import highlow
from pyalgotrade import bar
from pyalgotrade.talibext import indicator
from pyalgotrade.technical import rsi
import numpy
import talib
class MyStrategy(strategy.BacktestingStrategy):
def __init__(self, feed,instrument,smaPeriod,emaPeriod,rsiPeriod,fastk_period,slowk_period,slowd_period):
strategy.BacktestingStrategy.__init__(self, feed, 1000) #change portfolio amount
self.__position = None
self.__instrument = instrument
self.setUseAdjustedValues(True)
self.__prices = feed[instrument].getPriceDataSeries()
self.__sma = ma.SMA(self.__prices, smaPeriod)
self.__ema = ma.EMA(self.__prices, emaPeriod)
self.__rsi = rsi.RSI(self.__prices, rsiPeriod)
self.__stoch = indicator.STOCH(self.__prices,fastk_period,slowk_period,slowd_period)
现在我收到错误:
Traceback (most recent call last):
File "bobo.py", line 103, in <module>
main()
File "bobo.py", line 99, in main
run_strategy(inst,10,250,14,5,5,5)
File "bobo.py", line 90, in run_strategy
myStrategy = MyStrategy(feed, inst, smaPeriod,emaPeriod,rsiPeriod,fastk_period,slowk_period,slowd_period)
File "bobo.py", line 28, in __init__
self.__stoch = indicator.STOCH(feed[instrument],fastk_period,slowk_period,slowd_period)
File "C:\Users\JDOG\Anaconda2\lib\site-packages\pyalgotrade\talibext\indicator.py", line 803, in STOCH
ret = call_talib_with_hlc(barDs, count, talib.STOCH, fastk_period, slowk_period, slowk_matype, slowd_period, slowd_matype)
File "C:\Users\JDOG\Anaconda2\lib\site-packages\pyalgotrade\talibext\indicator.py", line 105, in call_talib_with_hlc
return talibFunc(high, low, close, *args, **kwargs)
File "talib/func.pyx", line 9388, in talib.func.STOCH (talib\func.c:87125)
Exception: inputs are all NaN