From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Charles C. Berry" <ccberry@ucsd.edu>
Subject: Re: BUG: emacs orgmode ob-R.el function org-babel-R-evaluate-session
 over aggressively performs "; ; cleanup extra prompts left in output" and a
 possible workaround
Date: Sat, 7 Nov 2015 16:32:49 -0800
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To: "Cook, Malcolm" <MEC@stowers.org>
Cc: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>

On Sat, 7 Nov 2015, Cook, Malcolm wrote:

> Thanks Chuck for setting this through.
>
[...]
>
> I've wondered if there is not a better way for Babel to share an 
> interactive session with the user.  For instance, if we wanted to 
> support a new form of results processing on addition to value and 
> output.... Namely, "transcript", wherein the results of evaluating a 
> source block would be a transcript of the season with statements 
> interwoven with their respective outputs.... I suspect that this would 
> not be easy extension of the current approach since it would require 
> parsing the source into statements that get evaluated sequentially with 
> visible results echoed into the transcript.

You can do stuff like this using babel and some R code.

Here is a start:

--8<---------------cut here---------------start------------->8---
#+NAME: my-block
#+BEGIN_SRC R :eval no
ls()
a <- 1
sqrt(a+2)
ls()
#+END_SRC


#+BEGIN_SRC R :session :noweb yes :results value raw :wrap example
 	capture.output(
             source(textConnection("
   <<my-block>>
   "),
   echo=T,print=T))
#+END_SRC

#+RESULTS:
#+BEGIN_example

> ls()
[1] "a"

> a <- 1

> sqrt(a+2)
[1] 1.732051

> ls()
[1] "a"
#+END_example


--8<---------------cut here---------------end--------------->8---

I suppose you would want `:exports results'.

Best,
Chuck