Well, forget it, it was quite a stupid question, I need to learn much about PHP. :)

Best, Gabor

On Wed, Aug 26, 2009 at 2:43 PM, Gábor CsárdiGabor.Csardi@unil.ch wrote:

Dear All,

I'm writing a MW extension that runs R (www.r-project.org) code and displays the results. More precisely, the code is run by another program on another machine, the extension only passes the code to it, receives the results, formats and displays them.

I defined a custom tag for this, everything between <rcode>...</rcode> is evaluated as R code. So far so good. Now, what I would like to do is having a single R session for the whole page, instead of creating an R session for every <rcode> tag. Where should I store the extra data for the R session? Optimally, the first <rcode> tag on the page would create the R session, store it, and the rest of the <rcode> tags would just use it. Then, when the page was rendered (or there was an error), the R session would be closed, its associated data deleted.

I am sure that there is a good solution for this, as it is a quite general problem. If you can point me to some extension that uses a similar technique, that is also fine.

Thanks a lot, Gabor

-- Gabor Csardi Gabor.Csardi@unil.ch     UNIL DGM