dataArea                Data Unit Level Mean of Rice Field Productivity
dataUnit                Data Unit Level of Rice Field Productivity
eblupgeo                EBLUP's for domain means using Geoadditive
                        Small Area Model
pbmsegeo                Parametric Bootstrap Mean Squared Error of
                        EBLUP's for domain means using Geoadditive
                        Small Area Model
zspline                 Z-Spline
