st: AW: TS var command for panel data - error: repeated time values in sample

["Martin Weiss" <martin.weiss1@gmx.de>]

<> 


Note that -tsset- has a second syntax

tsset panelvar timevar [, options]

that lets you tell Stata that you have a panel structure.



HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Nicole
Ratzinger
Gesendet: Montag, 21. Juni 2010 09:10
An: statalist@hsphsun2.harvard.edu
Betreff: st: TS var command for panel data - error: repeated time values in
sample

Hello,

I would like to use the TS var command, vector autoregressiv models. I 
tried to tell Stata that I have time series data.
My data is structured as follows: Three years with approximately 450 
company observations for each year. I have an identifier variable for 
the companies and a time variable, year, and all the other variables 
(unstructured panel data, each row a company observation). After telling 
stata the time series structure of my data set I could use the lag 
operator and other TS commands. However, if I  use the var command I get 
the error 'Repeated time values in sample'. Is it possible to tell 
stata, that the first 460 rows are the data for time point 200x and the 
next 450 for the time period 200x+1? How can I use the var command for 
my dataset?

Thanks in advances.
Nicole

-- 
Dipl.-Math. oec. Nicole V. S. Ratzinger
Universität Ulm
Institut für Rechnungswesen und Wirtschaftsprüfung
Professor Dr. K.-U. Marten
Helmholtzstraße 22
89081 Ulm
Telefon: +49 731 50 31025
Telefax: +49 731 50 31028
mailto:nicole.ratzinger@uni-ulm.de
http://rwwp.mathematik.uni-ulm.de 

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