运行环境：win10 64位 py 3.6 pycharm 2018.1.1
导入对应的包和数据
import matplotlib.pyplot as plt
import numpy as np
from sklearn import datasets,linear_model,cross_validation,svm
def load_data_regression():
diabetes = datasets.load_diabetes()
return cross_validation.train_test_split(diabetes,diabetes.target,te
