x = 3.5 y2 = 3.1 x = 2.5 y2 = 1.1 x = 1.5 y2 = 1.3 x = 0.5 y2 = 3.1 x = 3.5 y1 = 2 x = 2.5 y1 = 0.5 x = 1.5 y1 = 2.8 x = 0.5 y1 = 1
The SGPlot Procedure