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

−6.9449e−3

−2.4058e−3

4.2534e−3

400

160

−4.9028e−4

−2.7500e−3

−1.0913e−3

1.7314e−3

800

320

−8.5083e−5

−1.1958e−3

−5.1442e−4

7.5317e−4

1600

640

−3.6358e−5

−5.5090e−4

−2.4832e−4

3.4951e−4