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 <[email protected]> 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 <[email protected]> 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
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
--
CdeB
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
