RE: [ai-geostats] Re: Software for Automatic Semivariogram Estimation

2006-03-02 Thread Pierre Goovaerts
: RE: [ai-geostats] Re: Software for Automatic Semivariogram Estimation It would be very nice if there would be a tutorial on how to use the variogram modeler. machnife --- Pierre Goovaerts [EMAIL PROTECTED] wrote: Hi Susan, I would recommend the Stanford Geostatistical Modeling Software (S

RE: [ai-geostats] Re: Software for Automatic Semivariogram Estimation

2006-03-01 Thread Luke Spadavecchia
Hi all, for S or R users, GeoR is worth a look for auto-fitting procedures. This R package allows fitting of variograms (with the option of trend removal) via least squares (equal weights, n_pairs weights, or 'Cressie' weights), or computationally using maximum liklihood or REML. If you go

RE: [ai-geostats] Re: Software for Automatic Semivariogram Estimation

2006-03-01 Thread Mach Nife
) 913-2201 http://home.comcast.net/~goovaerts/ From: Hohner, Susan [mailto:[EMAIL PROTECTED] Sent: Tue 2/28/2006 1:28 PM To: AI Geostats mailing list Subject: RE: [ai-geostats] Re: Software for Automatic Semivariogram Estimation Yikes! I

Re: [ai-geostats] Re: Software for Automatic Semivariogram Estimation

2006-02-28 Thread Edzer J. Pebesma
Isobel Clark wrote: Behrang What weighting do you use in the weighted least squares? Isobel I have found choosing suitable weights always a frustrating event. Cressie's weights, let's say N_h/[(gamma(h))^2], has attractive properties, both intuitively and statistically. Here, gamma(h) is

RE: [ai-geostats] Re: Software for Automatic Semivariogram Estimation

2006-02-28 Thread Pierre Goovaerts
Geostats mailing list Subject: RE: [ai-geostats] Re: Software for Automatic Semivariogram Estimation Yikes! I was working through the tutorial for the Geostatistical Analyst Extension when this email discussion popped up. Any recommendations for a traditional geostatistics software package

Re: [ai-geostats] Re: Software for Automatic Semivariogram Estimation

2006-02-28 Thread Behrang Kushavand
, 2006 9:53 PM Subject: [ai-geostats] Re: Software for Automatic Semivariogram Estimation Behrang What weighting do you use in the weighted least squares? Isobel http://www.kriging.comBehrang Kushavand [EMAIL PROTECTED] wrote: hi,I have a software for Variogram AUTO