[ESS] knitr

[Vitalie Spinu]

Auctex integration is already there for Rnw, as far as I can see. You
can activate it from the noweb/Sweave menu. 

  >> Rasmus <rasmus at gmx.us>
  >> on Wed, 6 Jun 2012 22:14:44 +0100 wrote:

  > Brett Presnell <presnell at stat.ufl.edu> writes:
  >> Code "chunks" in org-mode (delimited by #+BEGIN_SRC and #+END_SRC) can
  >> be edited in a separate emacs window by typing C-c '.  This window is
  >> opened in the appropriate mode (ESS for R code) and saved back to the
  >> document by typing C-c ' again.

  > I love Org-mode, but I prefer the behavior of the ESS noweb mode.  It
  > would still be convenient for long code chucks, though.  I guess it
  > should be somewhat easy to write up a narrow to chuck function.

In noweb mode there is M-n n to narrow to chunks. It should eliminated
the need for C-c ' altogether. 

  >> I'm not sure where the implementation would have to take place for Rnw
  >> or knitr files (ESS?  AUCTeX?  Both?), but something like this would
  >> avoid mode switching between AUCTeX and ESS, which has never worked
  >> properly for me (maybe because I find it incredibly cumbersome to avoid
  >> all use of dollar signs in my R code).  This may seem like a minor
  >> thing, but these mode switching problems often make editing Rnw files
  >> into a fairly painful experience for me, and I do a lot of it.

Yes, resetting modes every time you switch a chunk is the main (if not
the only) reason for a rewrite.

Vitalie.