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st: RE: Panel data - Finding repeated time values in observations

From   "Nick Cox" <>
To   <>
Subject   st: RE: Panel data - Finding repeated time values in observations
Date   Fri, 25 May 2007 11:55:52 +0100

In addition to other suggestions, note that 
this is an FAQ (meaning, not that this is an 
especially frequently asked question but that there is 
a FAQ on the internet): 

FAQ     . . . . . .  Dealing with reports of repeated time values within panel
        12/05   How do I deal with a report of repeated time values
                within panel?

There are of the order of 300 FAQs on the Stata website -- that could 
be a whole book of FAQs ! -- and many more at UCLA. 

Both sets are matched by entries in the .key files that the Stata 
command -search- interrogates. Thus, 

. search panel repeated 

points to the FAQ is question. You could also specify 

. search panel repeated, faq


Michael Crain
> My data set is panel data.  I am trying to define the data 
> set as time 
> series with the -tsset- command (tsset name yr_mo) but I am getting a 
> message that I have repeated time values within the panel.
> I have a large number of observations.  What is the most 
> efficient way to 
> identify the repeated time values (other than visually 
> inspecting every 
> observation)?

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