Greetings Thanks Markus and Milton for your help But... Imagine that I'm running a GRASS Script with Module, and all GRASS functions. How can I integrate it in there? I mean, the user selects a raster and How can i use that input to run a Script that calls R? That is my question. Because I can have a script, like you sent me, but it's not interactive... Or is it easier using Python?
On Fri, Apr 16, 2010 at 3:28 PM, Markus Neteler <nete...@osgeo.org> wrote: > On Fri, Apr 16, 2010 at 11:21 AM, Gilbert Ferrara > <gilbertferrara1...@gmail.com> wrote: > > Good Morning > > I need to do something similar to what Neteler/Mitasova do in their book > > with spgrass6 and R. Since I will have to perform this a couple of times > I > > want to build a simple Script with input/output GUI. But I have never > seen a > > GRASS Bash script that calls R and spgrass6. So my question is? Does > anyone > > have/knows one? If not, I just need to send to the command line exacly > the > > same commands? e.g. R , summary(data) ) > > Yes. Example: > > GRASS 6.4.0svn (nc_spm_08):~ > cat R_batch_nc.R > library(spgrass6) > mydem <- readRAST6("elevation") > summary(mydem) > > To run it inside GRASS, do > > GRASS 6.4.0svn (nc_spm_08):~ > R CMD BATCH R_batch_nc.R > > The standard output result is stored in R_batch_nc.Rout. Of course > you can also generate new GIS data in R and write them back to > GRASS with writeRAST6() or writeVECT6(). > > Hope this helps, > Markus > > PS: Yes, I am also suprised that the GRASS Wiki isn't full of > useful scripts calling R in GRASS in batch mode... >
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