2017-06-16 36 views
0

我試圖理解python庫中的三次樣條生成。據我可以從python patsy三次樣條截距項

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輸出(無截距)看是相同的。有什麼我失蹤?謝謝!

回答