[pstricks] Working with multiple data columns

[Herbert Voss]

Am 23.01.2010 21:00, schrieb Brandon Kuczenski:

> This could be avoided if I could somehow perform computations on
> multiple data sets within pstricks- I could then have data for bottles,
> data for sheet and film, and data for fiber, and add them together as I
> need to make the plot.
> 
> [hoping that the question is clear enough]-- is there a way to
> accomplish this sort of thing in pstricks?  I'm prettty familiar with
> the pst bundle but I don't know much postscript.  But I sense that I
> might have to wade into postscript for this one.

http://tug.org/PSTricks/main.cgi?file=pst-plot/DataExamples#polarplot

the last example shows how two values can be added
for a third plot.

Herbert