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Re: How to label an impulse plot?

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From	sfeam <sfeam@users.sourceforge.net>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: How to label an impulse plot?
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Date	Tue, 03 Apr 2012 14:44:20 -0700
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babelproofreader wrote:

> On 2 Apr., 17:48, sfeam <sf...@users.sourceforge.net> wrote:
>> babelproofreader wrote:
>> > I am currently plotting a series of impulse bars with Gnuplot like
>> > this:
>>
>> > using 1:23 notitle with impulses lt 0 linecolor rgb "#C0C0C0" axis
>> > x1y2, \
>> > using 1:24 notitle with impulses lt 0 linecolor rgb "#C0C0C0" axis
>> > x1y2, \
>>
>> > and I would like to label these impulse bars with identifying numbers
>> > at the top/bottom of each impulse bar. How can I adjust the above code
>> > to achieve this?
>>
>> See 5th plot in this demo:
>>
>> http://gnuplot.sourceforge.net/demo_cvs/datastrings.html
>>
>> The demo uses "with boxes" rather than "with impulses" but it shouldn't
>> matter.
> 
> Thanks for this link but it doesn't quite do what I would like. I
> don't want to label the impulses with their values but rather label
> them sequentially i.e. the first impulse is labelled "1", the second
> "2" etc.

That's fine.  The sequential order of the points in returned in column 0.
See "help pseudo-columns".
So use a plot command like
   plot 'foo' using 1:23 with impulses, '' using 1:23:0 with labels

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How to label an impulse plot? babelproofreader <babelproofreader@gmail.com> - 2012-04-02 05:49 -0700
  Re: How to label an impulse plot? sfeam <sfeam@users.sourceforge.net> - 2012-04-02 14:48 -0700
    Re: How to label an impulse plot? babelproofreader <babelproofreader@gmail.com> - 2012-04-03 12:53 -0700
      Re: How to label an impulse plot? sfeam <sfeam@users.sourceforge.net> - 2012-04-03 14:44 -0700
        Re: How to label an impulse plot? babelproofreader <babelproofreader@gmail.com> - 2012-04-04 05:49 -0700

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