Table 2.

Predicting performance in different steps of ANFIS.

Indexes	RMSE
	Initial	1st step optimization	2nd step optimization	Radii	Epoch	CC
PSI
- Train	0.1082	0.0875	0.0806	0.9	16
- Check	0.1375	0.1164	0.0861			0.993
RSI
- Train	0.2240	0.1839	0.1553	0.75	20
- Check	0.2887	0.2808	0.2163			0.984
AI
- Train	0.1363	0.1159	0.0969	0.6	100
- Check	0.2284	0.2028	0.1673			0.952
SAR
- Train	0.6474	0.6060	0.5473	0.55	20
- Check	0.3284	0.3154	0.2713			0.9588