Dear all users of gstat
I'm using the gstat library for univariate geostatistics analysis,
I have to interpolate with kriging value of water level from wells to evaluate
the water table.
I use the univarsal kriging and the indipendent variable is the digital
elevation model (DEM)
If I use a DEM with resolution of 20 mt I have an error memory
This is the string command I use for do that:
OK_res20=krige(LEV_MAG91~DEM,loc=pozzi91_meno,newdata=DEM20,model=vgm_fit_mag91_DEM)
This is the error I have
Error: cannot allocate vector of size 3995610 Kb
If I use a DEM with resolution of 30 mt (using r.resample.rst)
(This is the string)
OK_res30=krige(LEV_MAG91~DEM,loc=pozzi91_meno,newdata=DEM30,model=vgm_fit_mag91_DEM)
every thinks works ok, is this a bug?? Maybe Dr. Pebesma can help me!! 
Thanks, Pierluigi
P.S.
this is my region setting
g.region -p
projection: 99 (Transverse Mercator)
zone: 0
datum: rome40
ellipsoid: international
north: 4829500
south: 4813540
west: 2280740
east: 2298420
nsres: 20
ewres: 20
rows: 798
cols: 884
--
Pierluigi De Rosa
Department of Enviromental & Civil engineering
Faculty of Engineering
Perugia (Italy)