Dataset {
    Float32 Y[Y = 7];
    Float32 X[X = 8];
    Grid {
     ARRAY:
        Float64 PredErrorVars[Y = 7][X = 8];
     MAPS:
        Float32 Y[Y = 7];
        Float32 X[X = 8];
    } PredErrorVars;
} PredErrorVars;