| 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 |