Hi Robert,

Thanks for the thoughtful message.

I present a couple of solutions below.

Robert Cunningham <robut@iinet.net.au> writes:

> G'day All,
>
> I wonder if I've missed something and there is a better way.
>
> Essentially I'm trying to use org babel with R and LaTeX to create figures 
> with both long and short captions (for contents)
>
> I'd started with:
>
> #+CAPTION: Nice data (filled points indicate less nice data)
> #+LABEL:   fig:nicedata
> #+ATTR_LaTeX: width=0.98\textwidth
> #+begin_src R :file ndata.pdf :width 1000 :height 617 :exports results
>   dotchart(data$ndata)
> #+end_src
>
> which pointed to the need for long/short captions...
>
> feeling hopeful I tried:
>
> #+CAPTION: Nice data [Nice data (filled points indicate less nice data)]
> #+LABEL:   fig:nicedata
> #+ATTR_LaTeX: width=0.98\textwidth
> #+begin_src R :file ndata.pdf :width 1000 :height 617 :exports results
>   dotchart(data$ndata)
> #+end_src
>

I'm attaching a patch [1] which adds shortname support for captions.  Once
applied, the following syntax will result in a caption with a shortname
and a longname.

--8<---------------cut here---------------start------------->8---
some pre-table text

#+source: g-nicedata
#+begin_src gnuplot :file graph.png :exports results
  plot sin(x)
#+end_src

#+Caption: [nice data]{a longer description of the niceness of the data}
#+results: g-nicedata
[[file:graph.png]]

some post-table text
--8<---------------cut here---------------end--------------->8---

however, while this patch is still pending there is an Org-babel
solution below which should work immediately.

>
>
> but no luck there.
>
> Next effort was to try to use R and LaTex more directly with noweb. I tried 
> this:
>
>
>
> #+srcname: r-nicedata
> #+begin_src R :session :file ndata.pdf :results output :exports results
>   dotchart(data$ndata)	
> #+end_src
>
>
> #+begin_src latex :noweb yes
>   \begin{figure}[htb!]
>     \centering
>     \includegraphics[width=0.98\textwidth]{<<r-nicedata()>>}
>     \caption[Nice data]{Nice data (filled points indicate less nice data)}
>     \label{fig:nicedata}
>   \end{figure}
> #+end_src
>
>
>
> This does produce the figure and long/short contents BUT ALSO produces this:
>
> #+results: r-nicedata
> [[file:ndata.pdf]]
>
> which upon export results in a link and consequently the plot appearing both 
> in the figure and elsewhere. This second plot is unwelcome.
>
> I've tried assorted :results and :output options but have not found how to 
> suppress the #+results: but still obtain the figure. I've always used 
> the :session option. 
>
> I've also tried twigging an org-export option to suppress pdf export but the 
> link is still exported so that is not a solution.
>
> The current "working" solution is to use the noweb approach and then use sed 
> to clean out the links to the second image-ugly to say the least!
>

You were very close with the noweb approach.  The following combination
should work -- notice the ":results silent" header argument to the
source block.

--8<---------------cut here---------------start------------->8---
some pre-table text

#+source: g-nicedata
#+begin_src gnuplot :file graph.png :results silent :exports none
  plot sin(x)
#+end_src

#+begin_src latex :noweb yes
  \begin{figure}[htb!]
    \centering
    \includegraphics[width=0.98\textwidth]{<<g-nicedata()>>}
    \caption[Nice data]{some nice data -- filled points indicate less nice data}
    \label{fig:nicedata}
  \end{figure}
#+end_src

some post-table text
--8<---------------cut here---------------end--------------->8---

is exported to the following latex, 

--8<---------------cut here---------------start------------->8---
some pre-table text



\begin{figure}[htb!]
  \centering
  \includegraphics[width=0.98\textwidth]{graph.png}
  \caption[Nice data]{some nice data -- filled points indicate less nice data}
  \label{fig:nicedata}
\end{figure}

some post-table text
--8<---------------cut here---------------end--------------->8---

Hope this helps,

Best -- Eric

>
>
>
> All this with org version 6.36c
>
>
> What have I missed? What is the best way to do this? 
>
>
> Cheers,
>
> Robert Cunningham
>
>
>
>
>
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Footnotes: 
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