sa13

// Usage: pl -gif sa13.htm 
//
// Illustrates overlaid coordinate systems in Y 
// (Celsius vs. Fahrenheit)

#proc page
#if @DEVICE in png,gif
  scale: 0.8
#endif

// do fahrenheit..
#proc areadef
rectangle: 2 1 7 3
xscaletype: date mmddyy
xrange: 010100 063000
yrange: -50 122
yaxis.stubs: inc 20
yaxis.stubrange: -40 120
yaxis.label: Fahrenheit
yaxis.labeldetails: size=6

// plotting in F data could go here..

// do celsius..
#proc areadef
rectangle: 2 1 7 3
xscaletype: date mmddyy
xrange: 010100 063000
yrange: -45 50
yaxis.location: min-0.9
yaxis.stubs: inc 10
yaxis.stubrange: -40 50
yaxis.label: Celsius
yaxis.labeldetails: size=6

// plotting in C data could go here..