thank for the reply Clyde
I have run the command
encode CompanyName, gen (firm)
xtset firm DataYearFiscal
repeated time values within panel
r(451);
after that, I tried another solution from http://www.stata.com/statalist/archi.../msg00160.html
but I think still didn't work
isid firm DataYearFiscal
variables firm DataYearFiscal do not uniquely identify the observations
r(459);
bysort firm DataYearFiscal:assert _N==1
20 contradictions in 23,508 by-groups
assertion is false
r(9);
. egen company id=group(SIC)
. tsset company id DataYearFiscal
repeated time values within panel
r(451);
any advice would be appreciated
I have run the command
encode CompanyName, gen (firm)
xtset firm DataYearFiscal
repeated time values within panel
r(451);
after that, I tried another solution from http://www.stata.com/statalist/archi.../msg00160.html
but I think still didn't work
isid firm DataYearFiscal
variables firm DataYearFiscal do not uniquely identify the observations
r(459);
bysort firm DataYearFiscal:assert _N==1
20 contradictions in 23,508 by-groups
assertion is false
r(9);
. egen company id=group(SIC)
. tsset company id DataYearFiscal
repeated time values within panel
r(451);
any advice would be appreciated
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