0
我试图理解python库中的三次样条生成。据我可以从python patsy三次样条截距项
import numpy as np
from patsy import dmatrix
x = np.linspace(0., 1., 100)
y1 = dmatrix("bs(x, df=6, degree=3, include_intercept=True)", {"x": x})
print(y1)
y2 = dmatrix("bs(x, df=6, degree=3, include_intercept=False)", {"x": x})
print(y2)
y1的（具有截距）和y2输出（无截距）看是相同的。有什么我失踪？谢谢！