[R] gstat no longer handles 1-D data

[Roger Bivand]

On Fri, 5 May 2006, Rick Bilonick wrote:

> Has anyone else noticed that gstat no longer handles 1-D data?
> 

Thanks for this report, writing directly to the package maintainer or the 
R-sig-geo list might have been a better choice than R-help

The problem does exist, but can be worked round by inserting a constant 
second dimension:

library(gstat)
data(meuse)
meuse$constY <- rep(1,nrow(meuse))
coordinates(meuse) = ~ x + constY
variogram(zinc ~ 1, data=meuse)

also leaving out the location formula, and using the coordinates in the 
SpatialPointsDataFrame object

Roger

> > library(gstat)
> > coordinates(pm.df) <- ~x
> Error in validObject(.Object) : invalid class "SpatialPoints" object:
> spatial.dimension should be 2 or more
> > variogram(pm~1,~x,data=pm.df)
> Error in validObject(.Object) : invalid class "SpatialPoints" object:
> spatial.dimension should be 2 or more
> 
> The variogram call used to work. It stopped working when I upgraded to
> the latest version of gstat.
> 
> Rick B.
> 
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-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no