[STATSGRASS] v.surf.krige

[lanczos at t-zones.sk]

I am trying to do some kriging job within grass using the v.surf.krige. It looks that there is an error, but I am not sure where is it, or I am doing something wrong. After finishing the variogram construction and starting the v.surf.krige I got a following error message:

 v.surf.krige model=Spherical psill=4 nugget=0.5 range=800 output=t_500_s outputcv=cvc_nfit outputcvf=cvc_fit

Error in parse(file, n = -1, NULL, "?", srcfile, encoding) :
    R_temp: syntax error, unexpected NUM_CONST, expecting ',' at
22: ,vgm(psill=4,model="Sph",range=800,nugget=))
23:
Execution halted
Done

Could somebody help me?

Many thanks in advance

Tomas

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