[GRASS-stats] R packages and GRASS

[Felipe Carrillo]

Agustin:
I get the message below while trying to execute from R
> system("g.region rast=elevation.dem") 
Warning message:
In system("g.region rast=elevation.dem") : g.region not found

On the same note, Would you mind sending me the attachment on a different format? This is a government computer and I don't have outlook to open it. Just copy and paste onto notepad or word if you don't mind. Thanks


Felipe D. Carrillo  
Supervisory Fishery Biologist  
Department of the Interior  
US Fish & Wildlife Service  
California, USA


--- On Thu, 11/5/09, Agustin Lobo <alobolistas at gmail.com> wrote:

> From: Agustin Lobo <alobolistas at gmail.com>
> Subject: Re: [GRASS-stats] R packages and GRASS
> To: "Felipe Carrillo" <mazatlanmexico at yahoo.com>
> Cc: "GRASS STATS" <grass-stats at lists.osgeo.org>
> Date: Thursday, November 5, 2009, 8:04 AM
> which error? we don't see it. Note
> you must start R from within
> the grass console. Actually it's better if, from the grass
> console,
> you launch xterm & and can start R from the new
> terminal.
> 
> Agus
> 
> Felipe Carrillo wrote:
> > Hi all:
> > I'm brand new to GRASS and this list and just wanted
> to see if someone could point out to what I need to
> synchronize R and GRASS. I already downloaded GRASS 6.3,
> spgrass6 and dependencies and at my first attempt something
> is happening but I can't quite see a way to import data into
> R or run commands from R. I ran into the code below
> yesterday but I can't figure out how to run it from R. I
> tried: system("g.region rast=elevation.dem") but I get an
> error message. Thanks
> > # set region:
> > g.region rast=elevation.dem
> > 
> > # extract some random points from an elevation
> dataset
> > v.random out=rs n=300
> > 
> > # create attribute table:
> > v.db.addtable map=rs columns="elev double"
> > 
> > # extract raster data at points
> > v.what.rast vect=rs rast=elevation.dem column=elev
> > 
> > # simple display:
> > d.rast elevation.dem
> > d.vect rs size=4
> > 
> > # start R
> > R
> > 
> > 
> > Felipe D. Carrillo  Supervisory Fishery
> Biologist  Department of the Interior  US Fish
> & Wildlife Service  California, USA
> > 
> > 
> >   
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> > 
> >   
> 
>