我试图使用TA-Lib获取股票交易量的移动平均线,但我得到了上述错误。对于如何解决这个问题,有任何的建议吗?谢谢!
见下面的代码:
import pandas_datareader as pdr
import datetime
import pandas as pd
import numpy as np
import talib as ta
#Download Data
aapl = pdr.get_data_yahoo('AAPL', start=datetime.datetime(2006, 10, 1), end=datetime.datetime(2012, 1, 1))
#Saves Data as CSV on desktop
aapl.to_csv('C:\\Users\\JDOG\\Desktop\\aapl_ohlc.csv', encoding='utf-8')
#Save to dataframe
df = pd.read_csv('C:\\Users\JDOG\\Desktop\\aapl_ohlc.csv', header=0, index_col='Date', parse_dates=True)
twenty_ma = 20
signals = pd.DataFrame(index=aapl.index)
signals['signal'] = 0.0
signals['20 MA'] = ta.SMA(aapl.Volume.values,twenty_ma)
答案 0 :(得分:1)
看起来SMA需要一个浮点数而不是整数:
In [11]: ta.SMA(aapl.Volume.values.astype('float64'), twenty_ma)
Out[11]:
array([ nan, nan, nan, ..., 78960385., 76585880.,
73991890.])