[R-sig-Geo] image.kriging in geoR package

[djrwicks]

When I use the contour function with an object of type kriging to create a
filled contour plot:

loci <- expand.grid(seq(0,1,l=51), seq(0,1,l=51))
kc <- krige.conv(s100, loc=loci,krige=krige.control(cov.pars=c(1, .25)))
contour(kc, filled=TRUE)

and then add the contour lines to this plot:

contour(kc, add=TRUE)

the latter appears stretched in the direction of the x axis and does not
overlay the former as it should.

Is this a common problem?  Any suggestions?

Dan.

(example taken from the R help ?image.kriging)



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