多重共线性的检验与处理
0 导入&加载数据
import os
import tarfile
import urllib
import urllib.request
DOWNLOAD_ROOT = "https://raw.githubusercontent.com/ageron/handson-ml2/master/"
HOUSING_PATH = os.path.join("datasets", "housing") # 把目录和文件名合成一个路径
HOUSING_URL = DOWNLOA