> It's a memory problem from R. It is trying to do garbage collection > (RunGenCollector) and getting hung up, probably because of exhausting > one of the stacks in R. Your std::vector<int> objects need to be > copied to R objects. Is it possible to define them as IntegerVector's > instead, in which case the Create method will (I think) just move some > pointers around.
I had the same problem a while ago and the solution we've come up with was to get rid of Rcpp::DataFrame and use Rcpp::XPtr instead. It turned out that Rcpp::DataFrame is rather impractical for sufficiently large data sets. As an alternative, Rcpp::XPtr is a little bit more complex to implement but by far more reliable and efficient. For more details see this http://lists.r-forge.r-project.org/pipermail/rcpp-devel/2012-January/003335.html and subsequent messages. Hope this helps. Cheers, Slava Mazur
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