3.Lasso regression.py 文件源码

def load_data():
    '''
    load for the dataset
        return:
                1 array for the regression problem.
                train_data, test_data, train_value, test_value
    '''
    diabetes = datasets.load_diabetes()
    return cross_validation.train_test_split(diabetes.data,diabetes.target,
        test_size=0.25,random_state=0)