How to download and try this example
Usage: pl -gif volunteers.htm or for postscript output: pl -ps volunteers.htm | lp
// specify data using proc getdata #proc getdata data: // yymm | %filled | #who worked | #trained | (#term) | #vol 9708 75 37 3 6 - 9709 90 41 3 0 - 9710 96 39 8 2 - 9711 96 44 6 2 - 9712 97 49 3 3 - 9801 95 41 5 3 - 9802 96 42 0 4 - 9803 97 41 0 1 - 9804 96 49 3 0 - 9805 90 47 2 2 - 9806 95 39 3 8 - 9807 89 33 2 4 - 9808 69 28 2 4 - 9809 70 35 1 0 33 9810 78 38 2 1 34 9811 82 30 4 0 36 9812 81 37 4 1 38 9901 81 31 4 0 40 9902 82 35 4 0 41 9903 76 36 1 0 38 9904 72 35 0 0 39 // do page title using proc page #proc page pagesize: 8.5 11 #if @DEVICE in gif,png // make a reduced GIF scale: 0.5 #endif dobackground: no titledetails: size=15 title: River Valley Cleanup Volunteer Report Through April '99 // define an areadef template using #procdef (proc areadef) // #procdef defines a proc without rendering it; it may then be cloned. #procdef areadef titledetails: size=12 style=BI box: 6.1 1 xscaletype: date yymm xrange: 9707 9905 xaxis.stubs: inc 1 xaxis.stubformat: M yaxis.stubs: inc 10 xaxis.autoyears: yyyy #saveas: A // set up the topmost plotting area.. // clone the template and alter some things (proc areadef) #proc areadef #clone: A title: Percent of volunteer time filled location: 1.2 8 yrange: 50 110 yaxis.stubrange 50 100 yaxis.stubs: inc 10 // do the topmost set of bars using proc bars #proc bars locfield: 1 lenfield: 2 showvalues: yes barwidth: 0.15 #saveas: B // 2nd bargraph #proc areadef #clone: A location: 1.2 6.2 yrange: 0 60 yaxis.stubrange: 0 60 title: Number of volunteers who worked #proc bars #clone: B lenfield: 3 // 3rd bargraph #proc areadef #clone: A location: 1.2 4.4 yrange: 0 60 yaxis.stubs: inc 10 title: Number of monthly volunteers #proc annotate location: 1.77473 4.73333 textdetails: size=8 align=L text: (This information not reported until 9/98) #proc bars #clone: B lenfield: 6 // 4th bargraph #proc areadef #clone: A location: 1.2 2.6 yrange: 0 10 yaxis.stubs: inc 2 title: Number of new volunteers trained #proc bars #clone: B lenfield: 4 labelzerovalue: yes