nag_order_data (g10zac) Example Program Results Number of distinct observations = 6 Residual sum of squares = 7.00000 X Y WEIGHTS 1.00000 4.00000 1.00000 3.00000 4.50000 2.00000 4.00000 3.00000 1.00000 5.00000 1.50000 2.00000 6.00000 9.00000 1.00000 9.00000 5.00000 3.00000