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Re: st: RE: predicting residuals in regression


From   brendan.halpin@ul.ie (Brendan Halpin)
To   statalist@hsphsun2.harvard.edu
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:brendan.halpin@ul.ie    ULSociology on Facebook: http://on.fb.me/fjIK9t
http://teaching.sociology.ul.ie/bhalpin/wordpress         twitter:@ULSociology
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