RPD -- Examples 4.2-4.5 -- X = Ozone, Y = Yield

                SSTOTALU      SSMU  SSTOTALC     SSREG   SSRESID

                  208495 207480.25   1014.75 799.13814 215.61186


                                S2 S2BETAHAT

                         107.80593 115.94223 -1017.037
                                   -1017.037 11623.281