Re: [R] Variogram problem

From: ONKELINX, Thierry <Thierry.ONKELINX_at_inbo.be>
Date: Tue, 29 Apr 2008 10:50:31 +0200

Nicolas,

I think you better have a look at the gstat package.

install.packages("gstat")
library(gstat)
example(gstat)
?variogram
?krige

HTH, Thierry




ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
Cel biometrie, methodologie en kwaliteitszorg / Section biometrics, methodology and quality assurance
Gaverstraat 4
9500 Geraardsbergen
Belgium
tel. + 32 54/436 185
Thierry.Onkelinx_at_inbo.be
www.inbo.be

To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data.
~ John Tukey

-----Oorspronkelijk bericht-----
Van: r-help-bounces_at_r-project.org [mailto:r-help-bounces_at_r-project.org] Namens Fritier Nicolas
Verzonden: dinsdag 29 april 2008 9:53
Aan: r-help_at_r-project.org
Onderwerp: [R] Variogram problem

Hello,

I'm french and I have some difficulties in carry out the semiones under R
with an aim to carry out an interpolation by krigeage. My goal is to obtain
a chart of the distribution of precipitations/temperatures in Europe starting from 73 different stations (and, of course, distributed irregularly
on the chart, where use of the krigeage). Here, I carried out this to test
to obtain semivariogram spherical by groping:

x<-ts(rnorm(73))
cs1<-corSpher(form=~x)
y<-Variogram(cs1,2628) #2628 corresponding to the " distance" described in
l' helps, that is to say the number of station* (the number of station -1)
/2.

But there does not go it misses apparently much d' information. Having begun under R for approximately one month, I have not controlled all his language yet, I am completely lost. Thank you for your answers, your assistance would facilitate the task largely to me!

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