Dear Madam/Sir,

I am a beginner for STATA. It will be highly appreciative if you can advise me how to fix this error potentially related to "outreg2".

regress ln_audit gafscore mascore big4 cspec ln_nonaudit icw restatement gc auchange merger financing yearend abaccrual ln_at mb leverage roa loss fsalepro SQ_SEGS ar_in spec
ial_item ln_tenure i.cyear i.sic2, robust cluster(gvkey) outreg2 using "C:\Users\hakjoon\Documents.out", append bdec(3) tstat excel bracket

invalid 'append'
r(198);

Thank you
Joon1