Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: # observations used in a fixed effects model


From   Jeremy Arkes <jeremyarkes@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: # observations used in a fixed effects model
Date   Sat, 19 Jul 2008 09:03:09 -0700 (PDT)

When I use xtreg and fixed effects, the # observations used in the model that the output reports includes observations that would drop out because there is only 1 observation for that group.  For example, a model I have has 3000 observations and 1800 groups.  So, a good number of observations are not used in the calculations of the model.  Is there any way to determine the # observations used in the calculations.

Thanks,

Jeremy


      
*
*   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/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index