Most of them can be found on page 38 of http://www.gstat.org/gstat.pdf
The Mat / Ste models are e.g. described in M. Stein, "Interpolation of Spatial Data: Some Theory for Kriging", Springer. Let me know if there are further descriptions missing. -- Edzer Sidney Bernal wrote: > > > Good Morning > > Today I make a geostatistics course, so I'm using R 2.10.1 and I am writing > to ask the please of the mathematical formulas of the 19 models of > covariogram variogram programmed in the gstat package. > > short long > 1 Nug Nug (nugget) > 2 Exp Exp (exponential) > 3 Sph Sph (spherical) > 4 Gau Gau (gaussian) > 5 Exc Exclass (Exponential class) > 6 Mat Mat (Matern) > 7 Ste Mat (Matern, M. Stein's parameterization) > 8 Cir Cir (circular) > 9 Lin Lin (linear) > 10 Bes Bes (bessel) > 11 Pen Pen (pentaspherical) > 12 Per Per (periodic) > 13 Hol Hol (hole) > 14 Log Log (logarithmic) > 15 Pow Pow (power) > 16 Spl Spl (spline) > 17 Leg Leg (Legendre) > 18 Err Err (Measurement error) > 19 Int Int (Intercept) > > Awaiting your prompt response. > > Sidney Bernal > sidney86_...@hotmail.com > > > > Sidney Bernal > > > _________________________________________________________________ > > > e=wlmailtagline > [[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 -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251 8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de http://www.52north.org/geostatistics e.pebe...@wwu.de _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
