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);
