Hello,
I'm using geoR package to compute kriging with the function krige.conv() and I used maptools (read.shape () +  Map2poly () ) 
and splancs (borders) packages to include a object of class polylist for the attribute borders.
 But I've got this message of error when 'borders' is in krige.conv () : 
krige.conv: there are no prediction locations inside the borders. 
My polylist is not good? The coordinates seam to be OK when I draw a map with this polylist object.
And if I use 'borders' in the contour function : message error is : 
Error in as.data.frame.default(borders) : can't coerce class "polylist" into a data.frame
If someone could help me, thanks a lot!
Chloé Archinard

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