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From: Karl Ratzsch <mail.kfr@gmx.net>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: set range for second independent variable in special file '++'
Date: Sun, 2 Apr 2017 19:02:38 +0200
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Am 27.03.2017 um 22:15 schrieb Karl Ratzsch:
> 
> Ja, that's definitely sufficient, and probably better than reusing the
> parametric 't' variable outside of it's original scope. For "++", this
> 
>   plot sample [var1=10:20] [var2=-3:3] '++' using ...
> 
> would be my favourite (nice not having to use the cryptic $n's, ranges
> can be varied for subplots), but it's probably heck to get the parser to
> recognise it. One "sample" keyword demands for one following range
> specifer, a second one might not be so easy to catch. ?
> 

Saw the latest 5.1 changelog earlier and gave it a quick try, thanks!

Any special reason it only works with "splot", not with "plot"? Not that
I presently have a 2D plot in mind that would make sensible use of that
feature, but who knows ...  ;-)

  Karl