*! version 1.00 94/1/20
program define roblowes
   version 3.0
   capture confirm existence `1' `2'
   capture confirm number `3'
   if _rc~=0 {
       di "syntax: roblowes yvar xvar bwidth"
       exit}
   robksm `1' `2', lowess bwidth(`3') xlab ylab gen(lowerob)
end