[R] default value for cutoff in gstat variogram()

[Patrick Giraudoux]

I wonder what is the default value for the argument 'cutoff' when not 
specified in the variogram.formula function of gstat. Computing 
variogram envelops within gstat, I am comparing the results obtained 
with variog in geoR and variogram in gstat, and it took me a while 
before understanding that the cutoff default value is not the maximum 
distance.

Can Edzer tell us about it?

All the best,

Patrick