r.weight

Good Morning,

I'm trying to overlay a county boundary file to NDVI map using r.weight.

r.weight seems to be having problems withthe syntax I am using. r.weight help
doesn't seem to help. Is ther another way to overlay county line to maps/images

Thanks

Jeremy

P.S> r.weight tells me

weight: assign p09ndvi.imgtest 0 map
What? Type help for help (syntax error)
weight: weight:

assign <name> <cat> <val> assign <val> to <cat> for map <name>

I believe my syntax is correct ?