From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andreas Leha <andreas.leha@med.uni-goettingen.de>
Subject: Re: Out of Order Evaluation
Date: Thu, 20 Mar 2014 23:13:26 +0100
Message-ID: <87lhw4cyd5.fsf@med.uni-goettingen.de>
References: <8AE0B11E-8EA2-41A8-8D0C-CDB610785239@gmail.com>
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To: emacs-orgmode@gnu.org

Hi Michael,

Michael Weylandt <michael.weylandt@gmail.com> writes:

> Hi, 
>
> I want to put a summary of my analysis at the beginning of a document
> using results calculated at the end of the document. Is this possible?
>
> #=========
> #+TITLE: Test
> #+AUTHOR: Michael Weylandt
> #+PROPERTY: header-args:R :session *__R__* :exports both
>
> * Summary
> The mean result was src_R[:exports results]{mean(x)}
>
> * Analysis, 
> We do some complicated calculations: 
>
> #+BEGIN_SRC R
> x <- rnorm(5)
> #+END_SRC
> #=========
>
> Is this possible in a single pass? I've played with #+NAME and
> <<block()>> but haven't gotten the out-of-order evaluation quite
> right.
>
> Michael
>

How about something along:

--8<---------------cut here---------------start------------->8---
#+TITLE: Test
#+AUTHOR: Michael Weylandt
#+PROPERTY: header-args:R :session *__R__* :exports both

* Summary
The mean result was src_R[:exports results :var analysisresults=theanalysis()]{mean(unlist(analysisresults))}

* Analysis, 
We do some complicated calculations: 

#+name: theanalysis
#+BEGIN_SRC R
x <- rnorm(5)
#+END_SRC
--8<---------------cut here---------------end--------------->8---

Regards,
Andreas