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From: Gudrun <bestenborstel@gmail.com>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: Plotting a range accorrding to given numbers
Date: Mon, 06 Feb 2012 12:07:02 +0000
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Good morning, Hans-Bernhard.
I am confused with "every" and "index". I thought index is the command I 
am looking for.
In the end I am looking for a way to choose by line number if you wish 
to say so.
Every seems to work fine, although Gnuplot makes funny things if the 
entry is NaN.

Kind regards
Gudrun



Am 04.02.12 17:43, schrieb Hans-Bernhard Bröker:
> On 03.02.2012 16:59, Gudrun wrote:
>
>> I just want to plot x-column, y-column, and error-column with the help
>> of the index-column.
>
> The nature of that "help" is still a bit unclear, because the index
> column in your example file is deceptively simple. As-is, it's actually
> superfluous, because it's just the line number. So the 'every' option I
> mentioned before could actually do what you want in this particular case.
>
> The question remains what is supposed to happen if the index column
> were, say
>
> 0
> 5
> 1
> 3
> 2
> 4
>
> or
>
> 5
> 4
> 3
> 2
> 1
> 0
>