Time

Actual value

(%)

the BPNN method

the proposed method

Predicting value (%)

Relative error

Predicting value (%)

Relative error

01-01

4.603

5.086

10.49%

4.284

−6.93%

01-02

5.092

4.835

−5.05%

5.258

3.26%

01-03

4.686

4.307

−8.09%

4.504

−3.88%

01-04

4.244

4.218

−0.61%

4.319

1.77%

01-05

4.091

4.247

3.81%

4.155

1.56%

01-06

4.184

4.162

0.53%

4.155

−0.69%

01-07

4.249

4.304

1.29%

4.154

−2.24%

01-08

4.856

4.438

−8.61%

4.540

−6.51%

01-09

5.277

5.075

−3.83%

5.157

−2.27%

01-10

4.412

5.251

19.02%

4.235

−4.01%

01-11

4.166

4.556

9.36%

4.166

0

01-12

4.276

4.434

3.70%

4.155

−2.83%

01-13

4.186

4.408

5.30%

4.206

0.48%

01-14

4.317

4.369

1.19%

4.273

−1.02%

01-15

4.846

4.474

−7.68%

5.155

6.38%

Emape

-

-

5.90%

-

2.92%