Table 4.

The RMSE statistics of the ANN models in testing for two hidden layers.

X*	1			2			3			4			5
Y*	RMSE	MAE	R2	RMSE	MAE	R2	RMSE	MAE	R2	RMSE	MAE	R2	RMSE	MAE	R2
1	0.0320	0.0245	0.962	0.0319	0.0245	0.9616	0.0629	0.0486	0.7928	0.0469	0.0312	0.8822	0.0477	0.0323	0.8852
2	0.0187	0.0168	0.9814	0.0236	0.0186	0.97	0.4184	0.3963	NaN	0.0171	0.014	0.9868	0.0191	0.0127	0.9801
3	0.0229	0.0151	0.9836	0.0154	0.0121	0.987	0.0129	0.0101	0.9939	0.1442	0.0456	0.195	0.0179	0.0157	0.9828
4	0.0268	0.0215	0.9609	0.0107	0.0089	0.9945	0.0322	0.0222	0.943	0.0902	0.0366	0.592	0.0219	0.0144	0.9749
5	0.0143	0.0114	0.9905	0.0105	0.0082	0.9961	0.0228	0.0174	0.9714	0.0249	0.0175	0.9717	0.0277	0.0183	0.9588
6	0.0147	0.01	0.989	0.0142	0.0106	0.9923	0.0285	0.0145	0.9627	0.0217	0.0158	0.9811	0.022	0.0161	0.98
7	0.0286	0.0147	0.9601	0.017	0.0135	0.9852	0.0156	0.0093	0.9893	0.0073	0.0061	0.9975	0.0159	0.0133	0.9904
8	0.0177	0.0118	0.9836	0.0281	0.0188	0.9565	0.0889	0.048	0.8232	0.0219	0.015	0.9809	0.07	0.037	0.7685
9	0.0282	0.0213	0.9632	0.0313	0.0194	0.9495	0.0263	0.0168	0.9831	0.0575	0.0464	0.8877	0.0275	0.0192	0.9686
10	0.0226	0.0171	0.9729	0.0533	0.0352	0.8669	0.0418	0.0192	0.9618	0.0193	0.0132	0.9874	0.0179	0.0134	0.9826
X*	6			7			8			9			10
Y*	RMSE	MAE	R2	RMSE	MAE	R2	RMSE	MAE	R2	RMSE	MAE	R2	RMSE	MAE	R2
1	0.0716	0.0436	0.8371	0.0712	0.0447	0.8416	0.0544	0.0452	0.8401	0.0449	0.0325	0.8908	0.044	0.0355	0.8941
2	0.0387	0.0258	0.9375	0.1006	0.0349	0.5589	0.0757	0.0508	0.861	0.0904	0.0536	0.6878	0.1476	0.0808	0.3663
3	0.1158	0.0432	0.6194	0.0459	0.0268	0.9042	0.0193	0.0151	0.9813	0.0301	0.0222	0.9503	0.1174	0.0814	0.4844
4	0.0385	0.0244	0.9406	0.1053	0.0548	0.8877	0.0779	0.035	0.7952	0.1249	0.0671	0.5727	0.0387	0.0254	0.9448
5	0.0684	0.0385	0.7699	0.0157	0.0129	0.9885	0.0145	0.0116	0.9905	0.4184	0.3963	0.0723	0.0298	0.0166	0.9697
6	0.0352	0.0235	0.939	0.0908	0.0489	0.8513	0.1306	0.0529	0.5611	0.0435	0.0187	0.9046	0.0291	0.0225	0.9597
7	0.0307	0.0188	0.9514	0.0136	0.0118	0.9925	0.0497	0.0223	0.8686	0.0365	0.0236	0.9419	0.0129	0.0102	0.9926
8	0.0162	0.012	0.9874	0.0368	0.0273	0.9329	0.0349	0.0257	0.9443	0.0279	0.0185	0.9744	0.0154	0.0131	0.9874
9	0.0436	0.029	0.8985	0.0462	0.0304	0.9288	0.0458	0.024	0.892	0.0225	0.0184	0.9732	0.039	0.0308	0.9325
10	0.0318	0.0195	0.9712	0.0424	0.02	0.9675	0.0275	0.0185	0.9594	0.0243	0.0186	0.9696	0.051	0.0225	0.8714

*X: number of nodes in the second hidden layer. Y: number of nodes in the first hidden layer.