gridded = TRUE/FALSE). The size of the grid is recognized by the input data coordinates.
User should define size of the single cell.
"Grid.box"(object,gridded,cellsize)Points.TRUE/FALSE. If true, then Spatial grid is made.SpatialPixels or data.frame, depends on whether
the spatial grid is required.
Points-class, Grid.def, Grid.interpolation, uncertaintyInterpolation2-package