You could try with the wave model: > require(geoR) > plot(c(0,100), c(0,1.5), type="n") > lines.variomodel(1:100,"wave", cov.pars=c(1, 5), nug=0.2)
which is algo implemented by other packages Paulo Justiniano Ribeiro Jr LEG (Laboratorio de Estatistica e Geoinformacao) Universidade Federal do Parana Caixa Postal 19.081 CEP 81.531-990 Curitiba, PR - Brasil Tel: (+55) 41 3361 3573 Fax: (+55) 41 3361 3141 e-mail: paulojus AT ufpr br http://www.leg.ufpr.br/~paulojus On Thu, 11 Dec 2008, Satterthwaite, Paul wrote: > Hello, > > > > I am a beginner with R, and have 2 questions concerning > spatial/geostatistics. I doing a little exercise investigating > periodicity in artificial patch landscapes and resulting periodicity of > semivariograms. > > > > Does anyone know if there is an already-existing model semivariogram > that contains a "hole effect" that can dampen with increasing lag, i.e., > includes some periodicity in the model semivariogram fit to the > empirical data? > > > > Any ideas would be GREATLY appreciated! > > Cheers! > > > > Sincerely, > > > > Paul M. Satterthwaite > > > > > > Paul M. Satterthwaite > > MS Student, Forest Science > > Richardson 201A > > Oregon State University > > Corvallis, OR 97331 > > [email protected] > <mailto:[email protected]> > > > > > [[alternative HTML version deleted]] > > _______________________________________________ > R-sig-Geo mailing list > [email protected] > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
