Table 3.

Results of the comparative analysis between the interval type-2 fuzzy Kalman filter and approach present in [49].

Methodology	RMSE	MAE	R${}^2$	MAPE(%)
Approach in [49]	0.1021	0.0862	0.99913	1.23$\times 10^{-1}$
Interval type-2 fuzzy Kalman filter	0.1005	0.625	0.99954	1.54$\times 10^{-1}$