Table 4.

Coefficients of determination for FF models developed with test data.

Coefficient of determination	ANFIS	GLR	RT	SVM
R2	0.9966	0.9683	0.9810	0.9560
RMSE	0.0004	0.0009	0.0008	0.0015
MMRE	0.2368	0.6742	0.5712	1.0985