Time-Series Regression Model for Prediction of Mean Daily Global Solar Radiation in Al-Ain, UAE

Table 3

SPSS least square estimation of the model parameters for ARMA (4, 3) model of residual GSR component.

Parameter	Lag	Estimate	Standard error	𝑡 value	𝑃 value
AR (1)	1	0.5494	0.0202	27.2320	0.000
AR (2)	2	−0.1193	0.0130	−9.1758	0.000
AR (3)	3	1.0064	0.0129	78.0475	0.000
AR (4)	4	−0.4534	0.0175	−25.8911	0.000
MA (1)	1	0.0721	0.0125	5.7486	0.000
MA (2)	2	−0.1109	0.0122	−9.1137	0.000
MA (3)	3	0.9572	0.0121	78.8096	0.000