[STATSGRASS] grass, gstat, and 3d maps

[Edzer J. Pebesma]

I wrote grass support in gstat such that also the z-dimension was
used; if the z-dimension is in column 3 of the site list, you should use:

data(something): 'sites', z=3;

i.e., x- and y-coordinates are assumed to be in column 1 and 2.

It is not unlikely that you are the first one to test this feature, so
please bear with us. Could you send me the offending command file, the
sites data (or part of it), and the output gstat gives you?
--
Edzer