Please note the message is about the protect stack, and not the `stack'.
The message you quote did not come from a current version of R (and you
have not told us what version you are using, as asked in the posting
guide).
On Mon, 17 Oct 2005 stich at uni-hohenheim.de wrote:
> Hi,
> I'm using step() for forward regression with 680 main effects and the
> correspomding 230860 interactions.
Hmm. How many data points? step() only tries 1000 steps by default.
> However, the calculation is stopped with the message:
> Error: protect(): stack overflow
>
> How can I specify the maximum size of the pointer protection stack when
running
> R not from command line but in an emacs-subwindow?
Ask ESS questions on the ESS list please, as the FAQ does ask you.
> How can I perform these calculations when the maximum value accepted is
> 100000?
which is a lot larger than the default value (which depends on your
unstated R version).
Without a lot more information it is unclear why the protection stack is
being used up. Please show us the last few lines of the output.
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595