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Re: st: drop panel observations


From   Scott Merryman <scott.merryman@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: drop panel observations
Date   Fri, 20 Mar 2009 22:02:02 -0500

Given that the smallest group size is 1 though all panels have at
least 4 observations, I would suspect you have non-consecutive
observations and you are using lags.

"Say exactly what you typed and exactly what Stata typed (or did) in
response. N.B. exactly!"

<http://www.stata.com/support/faqs/res/statalist.html#stata>

Scott

Note: that should have been -bysort panelvar:  keep if _N>=4-


On Fri, Mar 20, 2009 at 9:31 PM, Christian Bustamante <cdeb77@gmail.com> wrote:
> Hi and thanks for answer.
> Only one doubt: after dropping the observations and running xtregar,
> the results says
>
> Obs per group: min =         1
> avg =       4.6
> max =         9
>
> Why obs per group are 1? It shouldn't be 5?
>
>
> On Fri, Mar 20, 2009 at 9:21 PM, Scott Merryman
> <scott.merryman@gmail.com> wrote:
>> bysort panelvar:  keep if _N>4
>>
>> Scott
>>
>> On Fri, Mar 20, 2009 at 8:01 PM, Christian Bustamante <cdeb77@gmail.com> wrote:
>>> Hi
>>>
>>> I'm runing a regression model with a unbalanced panel. I want to drop
>>> observations of individuals that doesn't have at least observations
>>> for 4 years. How can I do that?
>> *
>> *   For searches and help try:
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>>
>
>
>
> --
> CdeB
>
> *
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>

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