Dear list, I have used Amelia to impute missing data, but I have some problems combining the 5 new data sets in Stata 9.2. When I enter estsimp ologit y x1 x2, robust mi(F:\ir1.dta F:\ir2.dta F:\ir3.dta F:\ir4.dta F:\1r5.dta), Stata runs the command for ir1, but then return the "invalid 'and'" message. The same happens if I enter: estsimp ologit y x1 x2, robust mi(F:\ir). What am I doing wrong here? Any advice would be appreciated. Thanks in advance Henning _________________________________________________________________ MSN Music http://music.msn.no Finn din favorittmusikk blant nesten 1 million låter -- Clarify mailing list served by Harvard-MIT Data Center [Un]Subscribe/View Archive: http://lists.gking.harvard.edu/?info=clarify