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Re: st: Panel with minimum observations


From   Christian Bustamante <cdeb77@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Panel with minimum observations
Date   Sun, 15 Mar 2009 14:51:15 -0500

Hi Joseph

When I use the -egen- comman Stata prints the following error

. by nit: egen myN=_N
unknown egen function _N()
r(133);

So I used the -gen- command, and it works how I want to.

Bests

On Sun, Mar 15, 2009 at 2:54 AM, Joseph McDonnell <jockmcdock@gmail.com> wrote:
> . sort myid
> . by myid: egen myN=_N
> . drop if myN<=2
>
> Of course, dropping is quite a severe step. You might prefer to use
> one of the 'mark' commands or just use the 'if' qualifier.
>
> Cheers
>
> Joseph
>
> On Sun, Mar 15, 2009 at 3:36 PM, Christian Bustamante <cdeb77@gmail.com> wrote:
>> Hi everybody,
>>
>> I runing a panel data model with a large dataset. The panel is
>> unnbalanced, so there is individuals with one or two observations. I
>> don't want to use this observations in my model, how can I set it?
>>
>> Thanks in advance
>>
>> --
>> CdeB
>> *
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>>
>
> *
> *   For searches and help try:
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> *   http://www.ats.ucla.edu/stat/stata/
>



-- 
CdeB

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