On Fri, Aug 06, 2010 at 09:03:09AM -0700, noclue_ wrote: > > > .Machine$sizeof.pointer > [1] 4
So it appears you are not on 64bit. Experpt form the help page: [...] sizeof.pointer: the number of bytes in a C ‘SEXP’ type. Will be ‘4’ on 32-bit builds and ‘8’ on 64-bit builds of R. [...] cu Philipp -- Dr. Philipp Pagel Lehrstuhl für Genomorientierte Bioinformatik Technische Universität München Wissenschaftszentrum Weihenstephan Maximus-von-Imhof-Forum 3 85354 Freising, Germany http://webclu.bio.wzw.tum.de/~pagel/ ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.