Hi Emily,
Unfortunately, you'll have to drop the missing observations from the data
set using "drop if malaria_test8tomiss !=." There is currently a bug in the
"if" statement. Hope that helps!
Cheers,
Matt
~~~~~~~~~~~
Matthew Blackwell
Assistant Professor of Political Science
University of Rochester
url:
http://www.mattblackwell.org
On Thu, Mar 27, 2014 at 1:11 PM, Emily White Johansson <
emily.johansson(a)kbh.uu.se> wrote:
I received the same error message as discussed in this
thread. I tried to
delete missing values in the treatment variable, as suggested, but I still
get the same error message. See below. Any suggestions? Thanks, Emily
cem childage (6 12 60) cem_mateduc (#0) urb_rur id_country (#0) if
malaria_test8tomiss !=., treatment(malaria_test8tomiss)
Matching Summary:
-----------------
Number of strata: 56
Number of matched strata: 22
0 1 .
All 775 404 528
Matched 626 322 437
Unmatched 149 82 91
imbalance(): 3258 <tmp>[1,1] found where void required
<istmt>: - function returned error
r(3258);
-
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