Table 3.

Statistical analysis of the constructed ANFIS and RSM models

Model	Parameter	Training phase				Testing phase
		RMSE	R 2	MAPE	MAE	RMSE	R 2	MAPE	MAE
ANFIS	Lycopene	1.319	0.997	0.623	1.147	2.495	0.993	1.146	2.017
	Total phenolics	1.547	0.999	0.452	1.201	7.716	0.956	2.496	6.563
	L*	0.313	0.945	0.914	0.262	0.434	0.867	1.269	0.357
	a*	0.376	0.967	3.294	0.301	0.620	0.940	5.371	0.502
	Aerobic plate count	0.033	0.991	1.120	0.025	0.078	0.998	2.648	0.056
	Yeasts and molds	0.024	0.999	3.079	0.018	0.144	0.985	5.752	0.098
RSM	Lycopene	2.519	0.987	1.122	1.976	2.779	0.986	1.198	2.082
	Total phenolics	3.854	0.991	1.173	3.227	13.065	0.929	4.255	10.895
	L*	0.703	0.720	2.012	0.568	1.275	0.388	3.094	0.823
	a*	0.893	0.812	7.409	0.699	0.732	0.931	7.429	0.662
	Aerobic plate count	0.347	0.900	9.510	0.293	0.341	0.906	9.189	0.287
	Yeasts and molds	0.260	0.933	7.584	0.218	0.212	0.956	6.116	0.177