

rev  reverse X/Y data sense (and titles). Note this is done after processing any fudging of the input data stream(s) (see xk, yk, logx, etc below). 
below  put data set titles below the graph rather than to the right. 
close  no extra space around the data’s endpoints. 
qline  connect the quartile center points. 
grid  dotted line grid marks. 
nobox  no box around whole graph. 
big  make the graph take the whole page, and be about 8 inches tall by 7 inches wide and the title is +8 points. 
slide  make the graph be 4.25 inches square to fit in slides, in a helvetica bold 10 point font. 
small  make the graph be small, 1.75 inches square, and use an 8 point bold font. 
grapheach  draw each data set in its own graph. 
nolabels  no X/Y/Title labels. 
notitle  no Title label. 
nodatal  no data set labels. 
nomarks  do not mark each data point with distinct markers (endpoints are still marked). 
k  print values larger than 1000 as value/1000. 
xk  multiply X input by 1024 (blech). 
yk  multiply Y input by 1024 (blech). 
xm  multiply X input by 1024*1024 (blech). 
ym  multiply Y input by 1024*1024 (blech). 
logx  convert X input into log base 2 of X input. 
logy  convert Y input into log base 2 of Y input. 
Workstation price performance from a Digital ad. Process with
graph rev workstations  groff TX75%T Workstation Price / Performance, 6/93 %X SPECINT 92 Performance %Y Price in $1000’s "Dec AXP line 35 5 65 10 78 15 110 70
"Sun SPARC line 25 4 25 8 38 16 48 21 52 23 64 27
Data points are x y1 y2 y3 y4 y5. You get a two lines from the first two y values, a mark at the third, and another line from the last two.
gtroff(1), gpic(1), perl(1).
grapheach assumes the set of N graphs will fit on one page.Since it is just a simple perl script, I tend to be constantly adding one more feature on the fly. Consult the script for the latest set of options. Development is typically done by using the closest set of options to generate the graph, massage the graph to do what you want, then add that set of changes as a new option.
This isn’t done as much as I would like. It isn’t integrated with the groff preprocessor yet. It doesn’t know about .GS/.GE things. I use it to manually generate a pic file and then include that.
I need to include some example data sets with pgraph.
lm@sgi.com  PGRAPH (1)  Nov, 1995 
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