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

Table 12

Statistical error data for the mean monthly GSR error for regression models versus measured test data for years 2005–2007.

Description	Regression versus test data	Regression-ARMA versus test data
RMSE	0.0678	0.0254
MBE	−0.0475	−0.0167
MABE	0.0526	0.0217
MAPE	0.9214%	0.3825%
𝑅^2	99.85%	99.98%