如何从statsmodels.api中提取回归系数? [英] How to extract the regression coefficient from statsmodels.api?

问题描述

 result = sm.OLS(gold_lookback, silver_lookback ).fit()

得到结果后，如何获得系数和常数?

After I get the result, how can I get the coefficient and the constant?

换句话说，如果 y = ax + c 如何获取值a和c?

In other words, if y = ax + c how to get the values a and c?

推荐答案

您可以使用拟合模型的params属性来获取系数.

You can use the params property of a fitted model to get the coefficients.

例如，以下代码:

import statsmodels.api as sm
import numpy as np
np.random.seed(1)
X = sm.add_constant(np.arange(100))
y = np.dot(X, [1,2]) + np.random.normal(size=100)
result = sm.OLS(y, X).fit()
print(result.params)

将为您显示一个numpy数组[ 0.89516052 2.00334187]-分别为截距和斜率的估计值.

will print you a numpy array [ 0.89516052 2.00334187] - estimates of intercept and slope respectively.

如果需要更多信息，可以使用对象result.summary()，该对象包含3个带有模型描述的详细表.

If you want more information, you can use the object result.summary() that contains 3 detailed tables with model description.

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