[R-sig-Geo] spgrass6, initGRASS() on MacOSX

[Roger Bivand]

On Tue, 14 Feb 2012, Johannes Radinger wrote:

> Hello,
>
> I want to use spgrass6 in an R session outside GRASS on Mac OSX. 
> Therefore I want to use initGRASS to set some needed environmental 
> variables etc. initGRASS() needs gisBase as one parameter which is the 
> direcotry path to the GRASS binaries. What is the standard path on Mac 
> OS X? My GRASS.app is in / /Applications/GRASS-6.5.app...
>
> so I tried following two approaches so far without success:

Please ask on statgrass or grass-users with reference to:

http://grass.osgeo.org/wiki/Working_with_GRASS_without_starting_it_explicitly

saying how you installed OSX GRASS. The views that OSX and R or Python or 
other scripting languages have of the file system may well differ a good 
deal.

Roger

>
>> initGRASS("/Applications/GRASS-6.5", home=tempdir())
> Fehler in initGRASS("/Applications/GRASS-6.5", home = tempdir()) :
>  /Applications/GRASS-6.5 not found
>> initGRASS("/Applications/GRASS-6.5.app", home=tempdir())
> Fehler in system(paste("g.version", get("addEXE", envir = .GRASS_CACHE),  :
>  Fehler bei der Ausf"uhrung des Kommandos
>
> I don't know what is causing the problem in the second approach?
> Does anyone know how to use initGRASS on Mac OS X in an R session outside GRASS correctly?
>
> Best regards,
> Johannes
> --
>
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-- 
Roger Bivand
Department of Economics, NHH Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no