python包：sklearn.linear_model.Ridge

1、简介

ridge是一个线性回归器。

2、实现

>>> from sklearn.linear_model import Ridge
>>> import numpy as np
>>> n_samples, n_features = 10, 5
>>> np.random.seed(0)
>>> y = np.random.randn(n_samples)
>>> X = np.random.randn(n_samples, n_features)
>>> clf = Ridge(alpha=1.0)
>>> clf.fit(X, y) 
Ridge(alpha=1.0, copy_X=True, fit_intercept=True, max_iter=None,normalize=False, random_state=None, solver='auto', tol=0.001)

参考：

1. 官方文档