Sgeostat module
On Thu, 18 Oct 2001, Laurent Dubroca wrote:
Dear Users, I use Sgeostat to calculate co variogram (function est.variogram with two variables). If i inverse the 2 variables in the functions, the co variogram change! Normaly it is symmetric, isn't it?
not necessarily have a look at "lag effects" supposedly described in Journal & Huijbregts, 1978, p.41 or in Goovaerts: Geostatistics for Natural Resources Evaluation, p.49
Someone could me explain why, or give me an idea to calculate co variogram in a easy way...
have you looked at GSLIB or GSTAT? J
Thanks in advance Laurent ps : sorry for my english Laurent William Dubroca Centre de Calcul de Chizé CNRS UPR 1934 BP 14 - Villiers en Bois - 79360 Beauvoir sur Niort France Ph : +33-(0)549.099.603 Fax : +33-(0)549.096.526 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
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