Hi all,
I had been using a cem matching output to run regressions and have just now
found that a large set of the output has the variable "cem_matched" ==1
while the "cem_strata" ==. (a.k.a. missing). For those cases, there is also
a weight stored in "cem_weights".
Is this a common occurance? If so, would you be able to explain when/why
this occurs?
Ben
Ben Hoen
Staff Research Associate
Lawrence Berkeley National Laboratory
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