4.0 9.0 17
5 6 0.0 NaN 9
6 7 5.0 10.0 7
7 8 7.0 NaN 14
8 9 12.0 4.0 16
9 10 NaN NaN 20
data.isnull()...1 3.0 10
1 2 1.0 15
2 3 7.0 8
3 4 7.0 12
4 5 4.0 17
5 6 0.0 9
6 7 5.0 7
7 8 7.0 14
8 9 12.0 16
9 10...return np.dot(xx, A)
x, y, test_x = [1, 2, 3, 4], [1, 5, 2, 6], 3.5
Polynomial(x, y, test_x)
2.2499999999999716...4.000000 17.0
5 6.0 0.000000 9.0
6 7.0 5.000000 7.0
7 8.0 7.000000 14.0
8 9.0 12.000000 16.0
9 10.0...4.0 9.0 17
5 6 0.0 NaN 9
6 7 5.0 10.0 7
7 8 7.0 NaN 14
8 9 12.0 4.0 16
9 10 NaN NaN 20
无效矩阵的数据密集显示
如果