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st: Re: estimation results and matrix


From   "Michael Blasnik" <michael.blasnik@verizon.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: estimation results and matrix
Date   Tue, 12 Oct 2004 15:49:07 -0400

you've got the syntax wrong (note square brackets):

matrix answers[`i',1]=_b[x]


but why not use -statsby- ?

Michael Blasnik
michael.blasnik@verizon.net

----- Original Message ----- 
From: "Sibel Selcuk" <ss8334b@american.edu>
To: <statalist@hsphsun2.harvard.edu>
Sent: Tuesday, October 12, 2004 3:36 PM
Subject: st: estimation results and matrix


> Hi,
> I'm trying to collect the coefficients of variable X in a matrix while
> doing the regression for different age groups. However, when I run the
> program, I get a message saying that "matrix operation not found".  Any
> suggestions would be appreciated. Thanks.
> 
> matrix answers=J(100,1,0)
> local i=23
> while `i'<70 {
> quietly regress y x if age==`i'
> matrix answers(`i',1,0)=_b(x)
> local i=`i'+1
> }
> 
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
> 

*
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