Hi Daniel, No, as it was I was trying to run things through R. Grass was (is) running, but just incidentally. Your comment made me think I needed to run initGRASS() first, so I tried, but got the following:
> initGRASS(gisBase="/Library/GRASS/6.4", gisDbase="/Users/timholland/Documents/GIS/Vietnam_General/VN_GrassDbase") Error in initGRASS(gisBase = "/Library/GRASS/6.4", gisDbase = "/Users/timholland/Documents/GIS/Vietnam_General/VN_GrassDbase") : A GISRC file already exists; to override, set override=TRUE Should I be running R through GRASS? (as opposed to vice-versa, as had been my understanding). If so, how do I do that? Again, sorry for really basic questions, but thank you for the help. Best, Tim On Wed, Oct 7, 2009 at 3:52 PM, Daniel McInerney <[email protected]>wrote: > Hi Tim, > Is R running within a GRASS session? > > Regards, > Daniel. > > Tim Holland wrote: > >> Hello, >> I'm sorry to keep making so much noise on the list for what I'm sure are >> basic questions. >> I am having trouble loading in a GRASS raster into R using the readRAST6 >> command. >> Using: >> >>> readRAST6("rasterMap",mapset="/Users/etc/my_mapset") >>> >>> >> >> I get the following error: >> >> >>> Error in if (file.exists(file) == FALSE) if (!missing(asText) && asText >>> == >>> >> : argument is of length zero >> >> >>> Error in parseGRASS(cmd) : g.region not parsed >>> sh: g.region: command not found >>> >>> >> >> Is there something I am doing wrong here? >> Also, when I am working with spgrass6 in general, should I have my working >> directory set to the GRASS DBase I am using, or does that matter? >> Thank you for the help, Tim >> >> >> >> >>> sessionInfo() >>> >>> >> R version 2.9.2 (2009-08-24) i386-apple-darwin8.11.1 >> locale: >> en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8 >> >> attached base packages: >> [1] stats graphics grDevices utils datasets methods base >> other attached packages: >> [1] spgrass6_0.6-9 XML_2.6-0 rgdal_0.6-12 sp_0.9-44 >> loaded via a namespace (and not attached): >> [1] grid_2.9.2 lattice_0.17-25 >> >> >> >> > >
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