Hello

I am trying to generate a propensity score matching using SPSSv22-R2.15.3. The output is aborted with an error (psmatching (....) missing values in dataset are not allowed even if not in use).

I do not understand the rationale behind this. Is there a function to accept missing? 

At the end I had to copy the variables without missing values outside to make sure that this is the only trick, and it is. 

Regards