Re: Test data for (m-code) semiovariogram?

[PhilipNienhuis]

forkandwait wrote
> PhilipNienhuis 
> <pr.nienhuis <at>
>  hccnet.nl> writes:
> 
>> 
>> forkandwait wrote
> 
> (SNIP)
> 
>> > Does anyone know of a good test dataset, with known correct input and
>> > ouptut, 
>> > that I can run to verify the code?
>> 
>> Just a little bit of googling turned up this:
>> 
>> http://www.ats.ucla.edu/stat/mult_pkg/faq/general/spatial_autocorr.htm
>> &
>> http://www.ats.ucla.edu/stat/sas/faq/SAS_variogram_fit.htm
> 
> Cool.  I did google I promise!

I believe you. My 10-yr old daughter regularly baffles me as she often
outwits my google skills...
(BTW a hint: Bing, Yahoo and other search engines often yield results that
Google didn't find - or didn't rank high enough in the results list which in
the end boils down to the same) 


> <snip>
>  
>> The statistics package may be a good target; I'd suggest to add a new
>> category "geostatistics"
> 
> I imagine just writing a single function -- semivariogram() with an option 
> for returning a fitted model -- and to start a whole new package seems
> silly 
> for that.  Even with 2 funcs -- kriging() -- it seems silly.  Plus I only 
> probably have time to submit a patch at the moment, not setup and maintain
> a 
> package.

I wrote category - not package!

If you don't know what I mean, just look in:
http://octave.sourceforge.net/statistics/overview.html
and pull down the Select category list (it'll probably mention
"Distributions").

Anyway please do submit your functions (in the patch tracker); if you don't
seed you never get a tree.

Philip



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