[GRASSLIST:3522] Re: Geophysical/Potential field modules for GRASS?

[Michael Barton]

Yes, I know that you can do krieging in R and GSTAT (as well as a lot 
of other very useful geostatistics), and that these can be compiled to 
link with GRASS. However, given that GRASS has other interpolation 
modules, had a krieging module, and has semivariagram functions in the 
sites module of 5.3, it would be nice to have a krieging module in 
GRASS. It is indeed nice to be able to combine GRASS with other Unix 
programs. However, it is also desirable not to have to compile and link 
up yet another program to do some of the more common kinds of 
geostatistical analyses common in GIS use. Both R and GSTAT are command 
line only, requiring an additional significant learning curve on top of 
that needed for a powerful GIS program. Also, the GSTAT page and GRASS 
links look like they haven't been updated in a couple years. If people 
are thinking about ways to enhance the ability of GRASS to work with 
geophysical and archaeological data, this is one place where GRASS 
itself is missing an important function.

Michael
____________________
C. Michael Barton, Professor
School of Human Origins, Cultures, & Societies
PO Box 872402
Arizona State University
Tempe, AZ  85287-2402
USA

Phone: 480-965-6262
Fax: 480-965-7671
www: <www.public.asu.edu/~cmbarton>
On May 27, 2004, at 4:36 AM, Thomas Adams wrote:

>  Michael,
>
>  You mentioned a lack of Kriging capabilities in GRASS. Maybe I'm 
> being naieve, or I don't understand the issue, but I have used R and 
> GSTAT quite successfully for spatial interpolation within GRASS. So, I 
> don't understand where the deficiencies lie unless you wanted GRASS 
> modules per se for kriging; I guess I don't see a real advantage in 
> that.
>
>  Tom
>
>
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