Thierry I have used used both GSTAT and GSLIB a lot and from a usability point of view, I much prefer GSTAT because of it's ability to interface with with GRASS GIS. This is particularly true of the standalone version of GSTAT. I began using GSLIB, and while I continue to make use of it, I fing GSTAT fits my needs better.
Another factor is that when ever I have encountered problems, Edzer has been very helpful to me — thank you Edzer! Regards, Tom Edzer J. Pebesma wrote: > Hi Thierry, > > I think spatstat covers point pattern analysis, which is mostly not > covered by gslib. I have seen either no or small differences between > gstat and gslib, but never differences that I could not explain. They > may for instance relate to how you integrate covariances over a block; > there's many ways you can do this, all approximate. Other issues are > neighbourhood selections that may be non-unique (e.g. take the nearest > 20 neighbours). > > I don't know of anyone who did a systematic comparison; you may want to > ask on ai-geostats. I also don't know how to address the gslib > community, if there is one. Has the open source version ever been > updated since the printing of the 2nd edition of the book? Who to > address with bugs or issues? > -- > Edzer > > ONKELINX, Thierry wrote: > >> Dear useRs, >> >> >> >> Currently I'm taking a course on spatial statistics. We use GSLIB in the >> exercises. Maybe I could convince the professor to let the R aficionados >> do their homework with R. So I was wondering if someone had already >> compared the algorithms used in R packages like spatstat and gstat >> versus the algorithms of GSLIB. If both R and GSLIB use similar >> algorithm and hence yield the same results, then we probably can switch >> to R. >> >> >> >> Best regards, >> >> >> >> Thierry >> >> >> >> ------------------------------------------------------------------------ >> ---- >> >> ir. Thierry Onkelinx >> >> Instituut voor natuur- en bosonderzoek / Reseach Institute for Nature >> and Forest >> >> Cel biometrie, methodologie en kwaliteitszorg / Section biometrics, >> methodology and quality assurance >> >> Gaverstraat 4 >> >> 9500 Geraardsbergen >> >> Belgium >> >> tel. + 32 54/436 185 >> >> [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> >> >> www.inbo.be <http://www.inbo.be/> >> >> >> >> Do not put your faith in what statistics say until you have carefully >> considered what they do not say. ~William W. Watt >> >> A statistical analysis, properly conducted, is a delicate dissection of >> uncertainties, a surgery of suppositions. ~M.J.Moroney >> >> >> >> >> [[alternative HTML version deleted]] >> >> _______________________________________________ >> R-sig-Geo mailing list >> R-sig-Geo@stat.math.ethz.ch >> https://stat.ethz.ch/mailman/listinfo/r-sig-geo >> >> > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > -- Thomas E Adams National Weather Service Ohio River Forecast Center 1901 South State Route 134 Wilmington, OH 45177 EMAIL: [EMAIL PROTECTED] VOICE: 937-383-0528 FAX: 937-383-0033 _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo