Greg Tucker-Kellogg <gtuckerkellogg@gmail.com> writes:

> I'm trying to use org-mode to reproduce the HTML slide show made with
> knitr demonstrated at http://goo.gl/bOJJo .  The following single code
> block works
>
> #+BEGIN_SRC R :results output html
>   library(googleVis)
>   G <- gvisGeoChart(Exports, "Country", "Profit", options = list(width = 250, 
>       height = 120))
>   print(G)
> #+END_SRC
>
> and wraps it in the needed HTML block, but if I set :session on the
> block the "R>" prompt is included in the output. If i set a file level
> session property it works fine, but if on a single block inserts the
> prompt.  I was expecting these would behave identically.
>
> Is this the expected behavior?
>
> Greg
>

Hi Greg,

This is not expected behavior, and in fact I do not see this behavior on
my system.  I get the attached (below) results when running your code
block in a session.  Is it possible that you have customized your R
session prompt?  If so you may need to customize the R prompt regexp in
ob-R.el.  Currently this is a literal value on line 353, but if it would
be useful to customize this value I will make it a defcustom so that you
can customize it from your .emacs.

Best,