我使用正规方程和梯度下降预测出的结果,为什么是这样的显示:
梯度下降的均方误差: 571.6913370336464
[[-0.08771191 0.12200384 -0.01594064 0.09022779 -0.23661188 0.27422839
-0.02176867 -0.3825644 0.29950068 -0.20738767 -0.22329701 0.08367528
-0.40248485]]
测试集中每个房子的预测价格: [[-3.10504778e-01]
[ 7.89659123e-01]
[-6.79532852e-02]
[-1.81832441e+00]
[-6.77809409e-01]
[ 9.38547371e-01]
[ 1.56677794e-01]
[ 9.80903006e-01]
[ 5.39914638e-01]
[-1.23428574e+00]
[ 5.52903295e-02]
还请大佬帮忙看看什么原因