From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Dokos <nicholas.dokos@hp.com>
Subject: Re: Gnuplot unevenly spaced non-numeric data plot?
Date: Sat, 21 Aug 2010 19:17:22 -0400
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To: John Hendy <jw.hendy@gmail.com>
Cc: nicholas.dokos@hp.com, emacs-orgmode <emacs-orgmode@gnu.org>

John Hendy <jw.hendy@gmail.com> wrote:

> Problem solved with babel. I was able to get everything I wanted by
> piecing together some examples from the mailing list and gnuplot
> examples/manual around the web.
> 

Good! Maybe you should post the babel solution for future reference.
Here is an org-plot solution for future reference: there is a script
option that allows you to use an arbitrary gnuplot script.  The org
manual (http://orgmode.org/manual/Org_002dPlot.html#Org-Plot) describes
it very well:

,----
| script If you want total control, you can specify a script file (place
|        the file name between double-quotes) which will be used to
|        plot. Before plotting, every instance of $datafile in the
|        specified script will be replaced with the path to the generated
|        data file. Note: even if you set this option, you may still want
|        to specify the plot type, as that can impact the content of the
|        data file.
`----

foo.org:
--8<---------------cut here---------------start------------->8---
#+plot:  type:2d script:"myscript.gp"
| 1 | x: where it should be on the scale | y  |
|---+------------------------------------+----|
| a |                                  0 | 10 |
| b |                                 10 | 20 |
| c |                                 11 | 30 |
| d |                                 40 | 40 |
--8<---------------cut here---------------end--------------->8---

myscript.gp:
--8<---------------cut here---------------start------------->8---
plot '$datafile' using 2:3:xticlabels(1)
--8<---------------cut here---------------end--------------->8---

Nick