I think I figured out what the issue is. Whenever I have the code chunks outside a headline for example:
#+TITLE: *scratch*
#+AUTHOR: Shripad Sinari
#+DATE: 2013-04-17 Wed
#+DESCRIPTION:
#+KEYWORDS:
#+LANGUAGE: en
#+OPTIONS: H:6 num:t toc:t \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
#+OPTIONS: TeX:t LaTeX:t skip:nil d:nil todo:t pri:nil tags:not-in-toc
#+EXPORT_SELECT_TAGS: export
#+EXPORT_EXCLUDE_TAGS: noexport
#+LINK_UP:
#+LINK_HOME:
#+XSLT:
#+NAME: test1
#+BEGIN_SRC R :results output latex :exports results
a <- 1:10
a
#+END_SRC
#+LATEX: \tiny
#+RESULTS: test1
#+LATEX: \normalsize
############################
However just placing the code chunks under a headline works:
#### The following works ####
#+TITLE: *scratch*
#+AUTHOR: Shripad Sinari
#+DATE: 2013-04-17 Wed
#+DESCRIPTION:
#+KEYWORDS:
#+LANGUAGE: en
#+OPTIONS: H:6 num:t toc:t \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
#+OPTIONS: TeX:t LaTeX:t skip:nil d:nil todo:t pri:nil tags:not-in-toc
#+EXPORT_SELECT_TAGS: export
#+EXPORT_EXCLUDE_TAGS: noexport
#+LINK_UP:
#+LINK_HOME:
#+XSLT:
* N1
#+NAME: test1
#+BEGIN_SRC R :results output latex :exports results
a <- 1:10
a
#+END_SRC
#+LATEX: \tiny
#+RESULTS: test1
#+LATEX: \normalsize
##############################################
Note the headline =* N1= is the only change between the two codes.
Regards,