How to download and try this example
Usage: pl -gif kmslide.htm Note: the simplistic technique used herein for coloring the overlapping ranges only works when one range is always below the other.
#proc page linewidth: 2 textsize: 11 backgroundcolor: darkblue color: white pagesize: 6.6 4.4 #if @DEVICE in gif,png scale: 0.7 #endif // Set up plotting region using proc areadef #proc areadef title: Kaplan-Meier Example\nProtocol 2M\n10-31-99 titledetails: size=14 align=C areaname: slide // 'slide' is equivalent to: lower left at 1 0.7 and upper right at 5.85 3.2 yrange: 0 1 xrange: 0 60 xaxis.stubs: incremental 6 xaxis.label: Months yaxis.stubs: incremental 0.1 yaxis.stubformat: %3.1f // Get data (from end of this file) using proc getdata #proc getdata #intrailer // do the blue range using proc rangesweep #proc rangesweep xfield: 1 lofield: 3 hifield: 4 color: powderblue legendlabel: 95% CI Group A // do the pink range using proc rangesweep #proc rangesweep xfield: 1 lofield: 6 hifield: 7 color: pink legendlabel: 95% CI Group B // do the yellow range which shows overlap using proc rangesweep #proc rangesweep xfield: 1 lofield: 6 hifield: 4 color: rgb(0.8,1,0.8) legendlabel: Overlap of CIs // now do the curves last so they come out on top of ranges.. // do the blue curve using proc lineplot #proc lineplot xfield: 1 yfield: 2 linedetails: color=blue legendlabel: Group A // do the red curve using proc lineplot #proc lineplot xfield: 1 yfield: 5 linedetails: color=red legendlabel: Group B // render the legend using proc legend #proc legend location: max-1 max seglen: 0.2 specifyorder: Group A 95% CI Group A Group B 95% CI Group B Overlap // here is the data... #proc trailer data: // T val1 lo1 hi1 val2 lo2 hi2 0 1 1 1 1 1 1 1 0.993 0.986 1.000 0.9895 0.981 0.998 2 0.9915 0.984 0.999 0.98 0.968 0.992 3 0.9845 0.974 0.995 0.972 0.958 0.986 4 0.9725 0.959 0.986 0.9625 0.946 0.979 5 0.937 0.916 0.958 0.9285 0.906 0.951 6 0.892 0.865 0.919 0.884 0.856 0.912 8 0.8335 0.801 0.866 0.8365 0.804 0.869 10 0.78 0.744 0.816 0.782 0.746 0.818 12 0.741 0.703 0.779 0.7585 0.721 0.796 14 0.6855 0.645 0.726 0.726 0.687 0.765 16 0.6565 0.615 0.698 0.6945 0.654 0.735 18 0.628 0.586 0.670 0.6595 0.618 0.701 20 0.607 0.564 0.650 0.6385 0.596 0.681 22 0.5685 0.525 0.612 0.6155 0.572 0.659 24 0.561 0.517 0.605 0.6035 0.560 0.647 26 0.536 0.491 0.581 0.569 0.524 0.614 28 0.514 0.469 0.559 0.539 0.493 0.585 30 0.497 0.451 0.543 0.5155 0.469 0.562 32 0.474 0.427 0.521 0.509 0.465 0.553 34 0.4635 0.416 0.511 0.4885 0.441 0.536 36 0.444 0.396 0.492 0.469 0.420 0.518 38 0.444 0.396 0.492 0.442 0.391 0.493 40 0.424 0.374 0.474 0.4365 0.385 0.488 42 0.4115 0.360 0.463 0.4305 0.379 0.482 44 0.403 0.350 0.456 0.4235 0.371 0.476 46 0.3865 0.331 0.442 0.415 0.361 0.469 48 0.3755 0.318 0.433 0.394 0.335 0.453 50 0.356 0.290 0.422 0.394 0.335 0.453