https://github.com/cran/gstat
Tip revision: f60795e7d31212c6a4604b07aa7cbcbd3e2dddcd authored by Edzer Pebesma on 14 March 2011, 18:41:44 UTC
version 0.9-78
version 0.9-78
Tip revision: f60795e
fit.Rout.save
R version 2.7.0 (2008-04-22)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
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> library(gstat)
Loading required package: sp
> data(meuse)
> v=variogram(log(zinc)~1,~x+y,meuse,cutoff=500,wi=100)
> v$gamma=c(0.5,1,2,3,3)
> fit.variogram(v, vgm(1, "Sph", 300, 0),warn.if.neg=TRUE)
model psill range
1 Nug 0.000000 0.000
2 Sph 7.878087 1567.749
Warning message:
In fit.variogram(v, vgm(1, "Sph", 300, 0), warn.if.neg = TRUE) :
partial sill or nugget fixed at zero value
> fit.variogram(v, vgm(1, "Sph", 300, 0),warn.if.neg=FALSE)
model psill range
1 Nug 0.000000 0.000
2 Sph 7.878087 1567.749
>