[STATSGRASS] Grass link to Gstat

[Agustin Lobo]

I've been succesful to get a variogram from
a sites file, but not from a raster file.
I do: 
GRASS:~/grass/gavarres_gis/h21/cell > gstat -i

and then:
1. Select 
2. Choose identifier or enter new one []: a
(where a is just a dummy name)
3.Enter data file name [] : test 
(where test is a raster file in $LOCATION/cell
4.Enter variable column number [0]:
(I let it to be 0 as I don't know what to input, this
is a raster file, not an x,y,(z),value file)
5. Hit return for Log transf. and for Average dups.

and the program quits with no comment or clue.

I'm sure I'm doing something wrong,
but what? how can I actually tell gstats
that my file is a raster file and not a sites file?

Thanks,

Agus


Dr. Agustin Lobo
Instituto de Ciencias de la Tierra (CSIC)
Lluis Sole Sabaris s/n
08028 Barcelona SPAIN
tel 34 93409 5410
fax 34 93411 0012
alobo at ija.csic.es


On Tue, 1 Apr 2003, Edzer J. Pebesma wrote:

> Agustin Lobo wrote:
> > 
> > Is there any info on actually how to use
> > Gstat on grass raster layers? The links in
> > the gstat and grass web pages are circular.
> 
> Just use it from the grass prompt. Gstat will detect that
> the environment variables set by starting up grass are set,
> and will then try to read any sites data or grid maps 
> from the grass data base.
> 
> > The gstat page indicates how to compile for
> > grass support but not how to use it. The pdf
> > manual does not include any mention to grass.
> 
> Thanks for mentioning; this manual indeed needs a thorough
> update.
> --
> Edzer
>