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Python算法交易
book

Python算法交易

by Yves Hilpisch
November 2022
Intermediate to advanced
392 pages
10h 8m
Chinese
China Electric Power Press Ltd.
Content preview from Python算法交易
152
|
第
5
章
图 5-4:欧元 / 美元汇率和基于线性回归的预测值(五个滞后,仅三个月)
5.1.4
预测未来收益
到目前为止,分析是基于绝对速率水平进行的。但是,(对数)回报可能是此类统
计应用程序的更好选择,例如,由于它们具有使时间序列数据保持平稳的特性。将
线性回归应用于收益数据的代码与以前几乎相同。这次不仅今天的收益与预测明天
的收益相关,而且回归结果实质上也完全不同:
In [31]: data['return'] = np.log(data['price'] /
data['price'].shift(1))
In [32]: data.dropna(inplace=True)
In [33]: cols = []
for lag in range(1, lags + 1):
col = f'lag_{lag}'
data[col] = data['return'].shift(lag)
cols.append(col)
data.dropna(inplace=True)
In [34]: reg = np.linalg.lstsq(data[cols], data['return'],
rcond=None)[0]
通过机器学习预测市场动向
|
153
In [35]: reg
Out[35]: array([-0.015689 ...
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Publisher Resources

ISBN: 9787519869694