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Re: st: statistics in heckman
From
Christophe Kolodziejczyk <[email protected]>
To
[email protected]
Subject
Re: st: statistics in heckman
Date
Fri, 29 Jul 2011 11:45:21 +0200
According to the manual /sigma should be the estimation of the
variance of the error term of the regression equation (see the manual
[R]Heckman p.648 for more detail)