Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down on April 23, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: Missing standard error of constant term


From   Nyasha Tirivayi <ntirivayi@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Missing standard error of constant term
Date   Thu, 16 Jun 2011 19:44:18 +0200

Hi Maarten

Thanks for your reply. I am doing the logit regression for propensity
score matching. And I really needed the community dummies in the model
to control for any unobserved community effects. So your suggestion
would be for me to  drop them completely? I checked and there are
sufficient observations per community.

Kindly advise

N. Tirivayi
Post doctoral fellow
Maastricht University
Netherlands

On Thu, Jun 16, 2011 at 7:37 PM, Maarten Buis <maartenlbuis@gmail.com> wrote:
> On Thu, Jun 16, 2011 at 6:51 PM, Nyasha Tirivayi wrote:
>> I am running a logit regression. However whenever I include
>> community/regional dummies the standard error for the constant term is
>> missing?
>>
>> How can I resolve this?
>
> Sounds like a coding error in your regional dummies or you just do not
> have enough observations per community to include those dummies.
> Generally it is a sign that your model is too complicated for your
> data, so you will need to simplify it.
>
> -- Maarten
>
> --------------------------
> Maarten L. Buis
> Institut fuer Soziologie
> Universitaet Tuebingen
> Wilhelmstrasse 36
> 72074 Tuebingen
> Germany
>
>
> http://www.maartenbuis.nl
> --------------------------
> *
> *   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/


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