The gstat Package - NexTag Supports Open Source Initiatives

fulmar 7Author(s)Edzer J. PebesmaReferencesChristensen, R. Linear models for multivariate, Time Series, and Spatial Data, Springer, NY, 1991.Kitanidis, P., Minimum-Variance Quadratic Estimation of Covariances of Regionalized Variables,Mathematical Geology 17 (2), 195–208, 1985See Alsofit.variogram,Examplesdata(meuse)fit.variogram.reml(log(zinc)~1, ~x+y, meuse, model = vgm(1, "Sph", 900,1))fulmarFulmaris glacialis dataDescriptionAirborne counts of Fulmaris glacialis during the Aug/Sept 1998 and 1999 flights on the Netherlandspart of the North Sea (NCP).Usagedata(fulmar)FormatThis data frame contains the following columns:year year of measurement: 1998 or 1999x x-coordinate in UTM31y y-coordinate in UTM31depth sea water depth, in mcoast distance to coast, in mfulmar observed density (number of birds per square km)Author(s)Dutch National Institute for Coastal and Marine Management (RIKZ), http://www.rikz.nl/