program define fvartest, rclass
	syntax [varlist(fv)]
	
	display "`varlist'"
	
end

program define vartest, rclass
	syntax [varlist]
	
	display "`varlist'"
	
end


sysuse auto, clear
reg price rep78##c.weight

local testlist: colnames e(b)
local testlist: subinstr local testlist "_cons" ""
di "`testlist'"

fvartest `testlist'
vartest `testlist' // errors out