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

Table 2

SPSS least square estimation of the model parameters for ARMA (2, 1) model of residual GSR component.

Parameter	Lag	Estimate	Standard error	𝑡 value	𝑃 value
AR (1)	1	1.45044	0.01889	76.7886	0.000
AR (2)	2	−0.45681	0.01720	−26.5608	0.000
MA (1)	1	0.96992	0.00999	97.0868	0.000