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st: estimation results and matrix

From   Sibel Selcuk <[email protected]>
To   [email protected]
Subject   st: estimation results and matrix
Date   Tue, 12 Oct 2004 15:36:38 -0400

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

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