output error in MatchIt
Yes!!..many thanks for your help - seems the problem is still pending! Here it is, "Average Treatment Effect" quantities of interest are not being included in zelig models temporarily. Simulation of these qi's will return pending a minor update to the 'setx' function. regards Marwan
On 2/25/14, Ista Zahn <istazahn at gmail.com> wrote:
It appears that average treatment effects are not calculated in the version of Zelig currently on CRAN. Note that this is a Zelig issue, not a MatchIt issue. See the "missing features" section of http://cran.r-project.org/web/packages/Zelig/NEWS. Best, Ista On Mon, Feb 24, 2014 at 9:09 AM, Marwan Khawaja <marwan.khawaja at gmail.com> wrote:
Hello,
I am trying to estimate average treatment effect in the MatchIt package
(current R version on Windows), and ran the model exactly as in the
documentation page 13, and got the following error massage,
ate.all<-c(s.out61$qi$att.ev, -s.out62$qi$att.ev)Error in
-s.out62$qi$att.ev : invalid argument to unary operator
(s.out62 is similar to s.out2 in the example0
Appreciate your help. Kindly respond to my private email - am not a
subscriber to R help list at the moment.
Thanks Marwan Khawaja
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