训练次数

均方误差

预测值

1000

4.006 × 10−4

0.007742414644

2000

3.289 × 10−4

0.008534511771

3000

6.627 × 10−5

0.007894591309

4000

1.360 × 10−4

0.008153175614

5000

5.861 × 10−5

0.007131973184