[O] Out of Order Evaluation

[Michael Weylandt]

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

(Bonus question, is there a way to not have to put ":exports results" in inline 
blocks?)