From mboxrd@z Thu Jan  1 00:00:00 1970
From: Erik Iverson <eriki@ccbr.umn.edu>
Subject: Re: Re: org-babel-R export parameters
Date: Mon, 07 Jun 2010 13:40:32 -0500
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To: Dan Davison <davison@stats.ox.ac.uk>, emacs-orgmode <emacs-orgmode@gnu.org>

<snip>
>>
>> #+begin_src R :results file :var basename="myplot"
>>   a <- 1:4
>>   pngfile <- sprintf("%s.png", basename)
>>   pdffile <- sprintf("%s.pdf", basename)
>>   
>>   png(pngfile)
>>   plot(a)
>>   dev.off()
>>   
>>   pdf(pdffile)
>>   plot(a)
>>   dev.off()
>>   
>>   pngfile
>> #+end_src
> 
> I like this better, and I can use dev.copy here too. The issue is a
> plot is rarely one line. Most of my plots are a half page of code
> between the data set, legend, etc.
> 

You could just make your complex plots functions, and then call your 
function in in one line. Or if you're using lattice or ggplot2, create 
objects representing the plot, and then plot them in one line.