[GRASS-user] Cross-validation scripts for v.surf.rst?

Markus Neteler neteler at itc.it
Fri Apr 27 08:03:50 EDT 2007


Hamish wrote on 04/27/2007 07:52 AM:
> Jonathan Greenberg wrote:
>   
>> I was wondering if anyone had written/acquired any cross-validation
>> scripts for v.surf.rst to optimize the tension/smoothing parameters
>> (they are alluded to in the documentation)?  
>>     
>
>
> I was thinking the same. A shell script loop to test many values isn't
> hard, although it might take a long time try all possibilities, log
> v.univar results for each attempt, then search the result matrix for the
> smallest error combo.
>   

Here you go:
http://mpa.itc.it/markus/grass63/
-> grass_crossvalidation.sh
<http://mpa.itc.it/markus/grass63/grass_crossvalidation.sh> 4.0K

It was mostly written by Jaro, I made the GRASS 6 updates (or so, can't
remember)
Please take it, improve it and publish the new version :)

Markus

------------------
ITC -> dall'1 marzo 2007 Fondazione Bruno Kessler
ITC -> since 1 March 2007 Fondazione Bruno Kessler
------------------




More information about the grass-user mailing list