My very simple approach is to check if the output file exists (within the
Sweave file), and run the time-consuming bits only if it does not.
As Uwe says, there are more sophisticated approaches too.
Sarah
On Fri, Dec 31, 2010 at 3:35 PM, Lars Bishop <lars...@gmail.com> wrote:
> Hi,
>
> Maybe I'm missing the point here...but let's suppose you are working with
> "large" data sets and using functions that take a significant amount of time
> to run in R. I woulnd't like to run these functions every time I call
> Sweave("myfile.Rnw") within R. What is the "common" practice to use Sweave
> in these situations. I would just run the function once, save the results
> and only load them each time I run Sweave on the .Rnw file. Makes sense?
>
> Sorry, the question seems silly, but I'd appreciate your thoughts.
>
> Thanks,
> Lars.
>
--
Sarah Goslee
http://www.functionaldiversity.org
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