Wondering if I could get some feedback on this error message I received running cem:
. cem strengthpid (1.5 2.5) age (25.5 45.5 64.5) educ (2.5 4.5 6.5) hhinc (3.5 5.5 7.5)
male, treatment(indepvote)
Matching Summary:
-----------------
Number of strata: 290
Number of matched strata: 0
0 1 .
All 125 860 1
Matched 0 0 0
Unmatched 125 860 1
imbalance(): 3258 <tmp>[1,1] found where void required
<istmt>: - function returned error
r(3258);
Return code 3258
nonvoid found where void required
An argument was expected to be void and it is not.
What is this referring to?
Thanks,
Michael Jones-Correa
Cornell