Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


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

Re: st: St: predicted values in zinb regression


From   Maarten buis <[email protected]>
To   [email protected]
Subject   Re: st: St: predicted values in zinb regression
Date   Fri, 18 Mar 2011 17:55:59 +0000 (GMT)

--- On Fri, 18/3/11, rachel grant wrote:
> I have used the command predict n to generate a set of
> predicted Y values after running zinb regression. I have
> my predicted values but there are no zeros in the
> predicted values at all, although in most cases the
> predicted value was very small where a zero should be e.g.
> 0.35. Is this OK or have I done something wrong?

predict will give you the expected value, which is the 
probability that an observation falls within the non-0 
category times the expected count in that case, and this 
will not be 0.

Hope this helps,
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/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index