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

Table 10

Statistical error data for the mean monthly GSR model for regression and regression-ARMA models versus measured model data for years 1995–2004.

Description	Regression	Regression + ARMA
RMSE	0.0228	0.0096
MBE	−1.47𝐸−04	6.50𝐸−05
MABE	0.0152	0.0065
MAPE	0.256%	0.103%
𝑅^2	99.979%	99.995%