On 28 February 2012 at 17:16, Steffen Neumann wrote:
| Hi,
|
| I am currently hunting a problem where a call to
| Rcpp::DataFrame::create() goes into a seemingly
| endless loop. seqNum,acquisitionNum and msLevel
| are all std::vector<int> of length N (~3.9 million),
| and if I change the code to only include seqNum,acquisitionNum
| this runs fine. msLevel contains values \in {0,1}.
|
| I am currently on R-devel (2012-01-16 r58124) x86_64-unknown-linux-gnu
| using Rcpp_0.9.7. I've added a gdb stack trace at the end,
We suggest that you upgrade to 0.9.10.
| although most useful information seems to have been optimized away :-(
|
| Any ideas what to check next ? Try a new Rcpp ?
I would always work with small reproducible examples, and try to solve it on
those first.
Doug suggested to create an Rcpp::IntegerVector object first which may help.
But in general, the implicit 'Rcpp::wrap()' of an STL object should also work
(and is a very nice feature to have).
You could also try Rcpp::List instead of Rcpp::DataFrame -- while they are
similar, Lists are just a little bit simpler.
Worst case, try objects half the size :-/
Dirk
| Yours,
| Steffen
|
| std::vector<int> seqNum(N);
| std::vector<int> acquisitionNum(N);
| std::vector<int> msLevel(N);
|
| // works:
| allScanHeaderInfo = Rcpp::DataFrame::create( Rcpp::_["seqNum"]
= seqNum,
| Rcpp::_["acquisitionNum"]
= acquisitionNum)
| // endless (?) loop
| allScanHeaderInfo = Rcpp::DataFrame::create( Rcpp::_["seqNum"]
= seqNum,
| Rcpp::_["acquisitionNum"]
= acquisitionNum,
| Rcpp::_["msLevel"]
= msLevel)
--
"Outside of a dog, a book is a man's best friend. Inside of a dog, it is too
dark to read." -- Groucho Marx
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