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Melaku Fekadu <email@example.com>
Wed, 21 Mar 2012 11:35:35 +0200
I want to use nnmatch to look for a control group. At this stage, I am
not estimating a treatment effect, because I do not have a measure of
the outcome variable yet. I will do that later on when I will collect
the outcome variable through interview.
In short, I am now interested only in building a control group.
My question is this: in nnmatch the first variable after nnmatch is
the outcome variable (y in the syntax below) which I do not have at
the moment. How can I get rid of this variable, so that the nnmatch
recognize that I do not use an outcome variable? Or are there othet
matching methods that do what I am aiming for?
nnmatch y t x1 x2 [w=w], met(matname) bias(x1 x3) exact(x4) pop
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