org-babel-tangle-w-comments has no effect in R?

From: Rainer M Krug <r.m.krug@gmail.com>
To: emacs-orgmode <emacs-orgmode@gnu.org>
Subject: org-babel-tangle-w-comments has no effect in R?
Date: Thu, 1 Jul 2010 09:27:54 +0200	[thread overview]
Message-ID: <AANLkTimGmW5PI_UAUg7Vs24qZ4IyD5905tfu_oocBqZU@mail.gmail.com> (raw)

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Hi

I am trying to use "tangle with comments". Based on a previous thread, I
set org-babel-tangle-w-comments to t with
 (setq org-babel-tangle-w-comments t)
in my emacs.org file.

The variable is actually set to 1 - I checked vie C-h - v

But nothing is changing in the tangled file? Am I doing something wrong? Or
are comments not supported in R in org-babel?

I attach a small testfile.

Cheers,

Rainer

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#+TITLE:     test.org
#+AUTHOR:    Rainer M Krug
#+EMAIL:     rkrug@ecolmod
#+DATE:      2010-06-30 Wed
#+DESCRIPTION: 
#+KEYWORDS: 
#+LANGUAGE:  en
#+OPTIONS:   H:3 num:t toc:t \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
#+OPTIONS:   TeX:t LaTeX:nil skip:nil d:nil todo:t pri:nil tags:not-in-toc
#+INFOJS_OPT: view:nil toc:nil ltoc:t mouse:underline buttons:0 path:http://orgmode.org/org-info.js
#+EXPORT_SELECT_TAGS: export
#+EXPORT_EXCLUDE_TAGS: noexport
#+LINK_UP:   
#+LINK_HOME: 
#+XSLT: 

* TODO first
#+begin_src R :tangle test.R
  x <- 1:10
  y <- runif(10)
  print(x)
  plot(x,y)
#+end_src

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