program define dirifit_ex Msg preserve preserve Xeq use http://fmwww.bc.edu/repec/bocode/c/citybudget.dta, clear Xeq dirifit governing safety education recreation social urbanplanning, /// mu(minorityleft noleft houseval popdens) Xeq ddirifit, at(minorityleft 0 noleft 0 ) Msg restore restore end program Msg di as txt di as txt "-> " as res `"`0'"' end program Xeq, rclass di as txt di as txt `"-> "' as res `"`0'"' `0' end