Table 2. Error Parameters of the Model.

well number	data set	SD	RMSE	AARD (%)	ARD (%)	min. of ARD (%)	max. of ARD (%)
QN-1	training	0.225	52.421	2.491	–1.546	0.001	60.389
	test	0.069	202.856	5.300	–4.232	0.036	15.346
	total	0.217	75.021	2.702	–1.748	0.001	60.389
QN-7	training	0.065	54.415	1.365	–0.275	0.001	36.107
	test	0.049	105.425	4.054	–3.181	0.016	11.372
	total	0.064	59.450	1.554	–0.479	0.001	36.107
QN-8	training	0.070	29.205	2.508	–0.576	0.001	55.459
	test	0.070	37.032	5.751	–1.867	0.076	27.874
	total	0.070	29.891	2.762	–0.677	0.001	55.459