Carlos, what you see are the lattice default settings; use trellis.par.get/set to get and change them:
library(gstat) # requires lattice
data(meuse)
trellis.par.set("background", list(col="#ffffff"))
trellis.par.set("plot.symbol", list(cex=1,col="#000000",font=1,pch="+"))
plot(variogram(zinc~1,~x+y,meuse))for more help, try: ?Lattice ?trellis.par.set
Please use a more descriptive subject, next time.
Best regards, -- Edzer
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