eloop function is similar to the
tloop function. When displaying a grads expression (
expr) with the E (Ensemble) dimension varying, the
eloop function will evaluate the
exprwith each designated ensemble member fixed, then reassemble the grids to obtain a final result that is E-varying. The
eloop function is provided as a way to obtain E-varying results from functions or expressions that are unable to operate when E is a varying dimension.