Juan Manuel Barreneche <jumanbar <at> gmail.com> writes: > > just to mention that the loop was already running for about 20 hours... > > Juan > > On Tue, Aug 19, 2008 at 6:31 PM, Juan Manuel Barreneche > <jumanbar <at> gmail.com>wrote: > > > Dear users, > > I got this problem and i don't have a clue of what it could be happening... > > > > The context: i'm running a loop in which i extract information from a > > raster map (I work with GRASS and R, using spgrass6 package), and rearrange > > it to create a matrix. ... > > Even so, the message "address (nil), cause 'memory not mapped'" appeared, > > and i really don't have a clue of what it means. > >
This question was also posted to the statgrass list, where it belongs. The thread will continue there (cross-posting is not a good idea). The messages so far do not contain information about what is happening, other than that a system() call from the R side, provoking an issue in running a GRASS module, should not bring R down. I feel that the general workflow is not adequate, and that very possibly the same instance of R should not be left running (script the other way round from the shell or similar) Roger ______________________________________________ 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.