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: RE: predicting residuals in regression
From
[email protected] (Brendan Halpin)
To
[email protected]
Subject
Re: st: RE: predicting residuals in regression
Date
Wed, 09 May 2012 18:55:19 +0100
On Wed, May 09 2012, Rudy Hover wrote:
> reg VarA VarB if firmno==`f' & year==`y'
> predict temp, residuals
> Stata errors with:
> no observations
> r(2000);
>
> The 12 real changes are correct: that's the 12 months per year for which
> it creates residuals. How do I find out for what variable it finds no
> observations?
Try replacing
. reg VarA VarB if firmno==`f' & year==`y'
. predict temp, residuals
with
. su VarA VarB if firmno==`f' & year==`y'
in your loop.
I suspect there is a combination of firmno and year for which all of
VarA and/or VarB are missing, or perhaps for which there are no cases.
Brendan
--
Brendan Halpin, Department of Sociology, University of Limerick, Ireland
Tel: w +353-61-213147 f +353-61-202569 h +353-61-338562; Room F1-009 x 3147
mailto:[email protected] ULSociology on Facebook: http://on.fb.me/fjIK9t
http://teaching.sociology.ul.ie/bhalpin/wordpress twitter:@ULSociology
*
* 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/