Hello, I'm using R 3.0.0 and trying to construct a fairly large sparse matrix with the Matrix package (40,567 columns and 64,323 rows ) and get the following error: Error in asMethod(object) : negative length vectors are not allowed Could this be an overflow problem, I thought R 3 would support long indices? I works fine with smaller matrices and also works as an ordinary non-sparse matrix. Are there alternatives that support large matrices? Regards, Arne [[alternative HTML version deleted]]

On 08/14/2013 02:25 AM, Mueller, Arne wrote: > Hello, > > I'm using R 3.0.0 and trying to construct a fairly large sparse matrix with the Matrix package (40,567 columns and 64,323 rows ) and get the following error: > > Error in asMethod(object) : negative length vectors are not allowed > > Could this be an overflow problem, I thought R 3 would support long indices? I works fine with smaller matrices and also works as an ordinary non-sparse matrix. Are there alternatives that support large matrices? > it looks to me like a bug in Matrix -- R itself supports long vectors, but packages need to be updated to do so. The right place to report this is to packageDescription("Matrix")$Maintainer with a (simple) reproducible example and sessionInfo() so that your problem is unambiguous. Martin > Regards, > > Arne > > > [[alternative HTML version deleted]] > > _______________________________________________ > Bioconductor mailing list > Bioconductor at r-project.org > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor > -- Computational Biology / Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N. PO Box 19024 Seattle, WA 98109 Location: Arnold Building M1 B861 Phone: (206) 667-2793