python实现K近邻回归,采用等权重和不等权重的方法
如下所示：fromsklearn.datasetsimportload_bostonboston=load_boston()fromsklearn.cross_validationimporttrain_test_spl
K近邻
如下所示：fromsklearn.datasetsimportload_bostonboston=load_boston()fromsklearn.cross_validationimporttrain_test_spl