Table 6: Prediction evaluation indices of MEP with different genes.

Max Genes MSE RMS MRPE (%) R
2 3.2877 1.8132 30.6310 0.5893
3 3.2265 1.7962 29.3161 0.5900
4 5.6669 2.3805 27.7666 0.4904
5 2.9651 1.7219 44.5286 0.5742
6 3.3259 1.8237 26.5876 0.7020
7 4.1276 2.0317 31.5460 0.5714
8 4.2060 2.0509 36.7593 0.4223
9 4.5620 2.1359 41.9879 0.5564
10 4.9292 2.2202 45.5722 0.5202