From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Dokos <nicholas.dokos@hp.com>
Subject: Re: org-babel src block generated graphics included twice if CAPTION
 is added
Date: Sun, 17 Mar 2013 18:21:29 -0400
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In-Reply-To: Message from Li Bowen <a0050726@nus.edu.sg>
	of "Sun, 17 Mar 2013 21:10:02 +0800." <87obei18b9.fsf@nus.edu.sg>
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To: Li Bowen <a0050726@nus.edu.sg>
Cc: emacs-orgmode <emacs-orgmode@gnu.org>

Li Bowen <a0050726@nus.edu.sg> wrote:

> Hi, 
> 
> If #+CAPTION is added, the figure will be included in the exported pdf
> file twice. 
> 
> #+begin_src R :exports both :results graphics :file img.pdf
> hist(rnorm(100))
> #+end_src
> 
> #+CAPTION: Some description
> #+RESULTS:
> [[file:img.pdf]
> 
> Many thanks.
> 

I think the problem is that the code block does not "see" the previously
produced #RESULTS: (because of the intervening #CAPTION:), so when run
again it adds another #RESULTS: section.

I think the best way to deal with problems like this is to name your code blocks
(and results blocks).

Try the following:

--8<---------------cut here---------------start------------->8---
#+name: foo
#+begin_src R :exports both :results graphics :file img.pdf
hist(rnorm(100))
#+end_src

#+CAPTION: Some description
#+RESULTS: foo
[[file:img.pdf]]
--8<---------------cut here---------------end--------------->8---

Does it solve the problem?

Nick