// Usage: pl -gif sa4.htm // set up area and scaling using proc areadef #proc areadef rectangle: 1 1 4 2 xscaletype: date mm-dd-yyyy xrange: 06-01-1998 06-01-2000 yrange: 0 100 // do months using proc axis #proc xaxis stubs: increment 1 month stubformat: M autoyears: yyyy