Hi
I am doing Nearest Neighbour propensity score matching and have used the following set of commands.
Array
Array

The identification of matched pairs: Array


It is not the matching in itself that is the problem, but the problem arises when i have to identify the matched pairs. I have tried the code above, which I have seen suggested on many pages here on statalist. But my problem is that the paircount don't get the value 2 at all. Instead there is values like 0, 1, 14, 27, 40 and 183.

How can this be? And how can I solve this problem?

I hope you can help me solve my problem, as the analysis is a part of my masters thesis.