n

m

$x_i=90$ 的误差

$x_i=100$ 的误差

$x_i=110$ 的误差

RMSE

200

80

−5.0713e−4

−5.2720e−3

−1.4840e−3

3.1756e−3

400

160

−4.6344e−4

−1.9258e−3

−6.2564e−4

1.1993e−3

800

320

−6.1876e−5

−7.8592e−4

−2.8082e−4

4.8317e−4

1600

640

−2.5018e−5

−3.4641e−4

−1.3139e−4

2.1439e−4