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From: Karl Ratzsch <mail.kfr@gmx.net>
Newsgroups: comp.graphics.apps.gnuplot
Subject: set range for second independent variable in special file '++'
Date: Mon, 20 Mar 2017 08:36:22 +0100
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Hi,

this is an example from the help:

  splot [-2:2][-2:2] sample [h=1:10] '+' using (cos(h)):(sin(h)):(h)

Simple enough. This gives an error, however

  splot sample [h=-9:9] [d=-0.2:0.2] '++' using (cos(h)):(sin(h)):(h+d)

. Can i set the range for the second independent variable of "++" and
still set the x,y display range independently?

I managed to do it plotting the numbers to a table, and then plotting
that with different (auto)ranging:

  set xr [-9:9]
  set yr [-0.2:0.2]
  set table $dat
  splot '++' using (cos(h)):(sin(h)):(h+d)
  unset table

  reset
  splot $dat w l

but I think I'm missing something. ?

  Karl