The gstat Package - NexTag Supports Open Source Initiatives

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12 gstatChristensen’s “Plane answers” book on linear models. The tests directory of the package containsexamples in file merge.R.Author(s)Edzer J. PebesmaReferenceshttp://www.gstat.org/Pebesma, E.J., 2004. Multivariable geostatistics in S: the gstat package. Computers & Geosciences,30: 683-691.See Alsopredict.gstat, krigeExamplesdata(meuse)# let's do some manual fitting of two direct variograms and a cross variogramg
hscat 13# and the manuals for predict.gstat and imagehscatProduce h-scatterplotDescriptionUsageProduces h-scatterplots, where point pairs having specific separation distances are plotted. Thisfunction is a wrapper around xyplot.hscat(formula, data, breaks, pch = 3, cex = .6, ...)ArgumentsValueNoteformuladatabreakspchcexspecifies the dependent variabledata where the variable in formula is resolveddistance class boundariesplotting symbolplotting symbol size... plotting parameters, passed to xyplotan object of class trellis; normally the h scatter plotData pairs are plotted once, so the h-scatterplot are not symmetric.Author(s)Edzer J. PebesmaReferenceshttp://www.gstat.org/Pebesma, E.J., 2004. Multivariable geostatistics in S: the gstat package. Computers & Geosciences,30: 683-691.Examplesdata(meuse)coordinates(meuse) = ~x+yhscat(log(zinc)~1, meuse, c(0, 80, 120, 250, 500, 1000))
Page 1 and 2: The gstat PackageMarch 12, 2008Vers
Page 3 and 4: fit.lmc 3ReferencesN.A.C. Cressie,
Page 5 and 6: fit.variogram 5fit.rangesfit.method
Page 7 and 8: fulmar 7Author(s)Edzer J. PebesmaRe
Page 9 and 10: gstat-internal 9See Alsopredict.gst
Page 11: gstat 11DetailsValuevarianceweights
Page 15 and 16: jura 15so by extending the image to
Page 17 and 18: krige 17jura.pred$Rock = factor(pre
Page 19 and 20: krige 19Valuea data frame containin
Page 21 and 22: krige.cv 21formulalocationsdatamode
Page 23 and 24: map.to.lev 23map.to.levrearrange da
Page 25 and 26: meuse.alt 25Examplesdata(meuse.all)
Page 27 and 28: ossfim 27ossfimKriging standard err
Page 29 and 30: oxford 29FormatNoteThis data frame
Page 31 and 32: plot.gstatVariogram 31Examplesdata(
Page 33 and 34: plot.pointPairs 33g = gstat(NULL, "
Page 35 and 36: plot.variogramCloud 35Valuexlimylim
Page 37 and 38: predict.gstat 37Detailsna.actionsps
Page 39 and 40: show.vgms 39v
Page 41 and 42: sic2004 41Examplesshow.vgms()show.v
Page 43 and 44: spplot.vcov 43Examplesdata(sic2004)
Page 45 and 46: variogram 45cutoffwidthalphabetatol
Page 47 and 48: variogramLine 47variogram(log(zinc)
Page 49 and 50: vgm 49add.toanisxa variogram model
Page 51 and 52: vgm.panel.xyplot 51Usagevgm.panel.x
Page 53 and 54: walker 53ReferencesApplied Geostati
Page 55: INDEX 55krige,formula,Spatial-metho

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