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st: RE: tsset


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: tsset
Date   Fri, 18 Oct 2002 19:13:04 +0100

Landman, Todd

> I have a cross-national time-series data set arranged with 
> countries (i) and
> year (t) for the period 1976-2000.  I use 
> 
> tsset stateid year, yearly 
> 
> and it does not show the unit and time settings (as it has 
> done for other
> data sets I have used), but says there are repeated values 
> for each panel. I
> have tabulated stateid with year and find the same mean and 
> summary stats
> for each country, so I do not have a repeated year in any 
> panel. How can I
> remedy this tsset problem?
> 

Another check is 

bysort stateid year : assert _N == 1 

If you get an error message, 

by stateid year : gen freq = _N -1 
list if freq 

Nick 
n.j.cox@durham.ac.uk 
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