Hello, I'm working with the PSMATCH procedure and testing out different matching methods. When using the REPLACE matching method (k=1), I was wondering if there is a way to limit the number of times a single control case can be used to be matched with treated cases? Looking at my matched output, I have 95% of all treated cases being matched with 6 or less control cases; however, I do have some extreme observations where a single control case is used to be matched with 100 different treated cases. Is there any way that I can limit it so that doesn't happen within the procedure itself, or is this something that I may need to look into post-match? Any insight or help is very much appreciated. Thanks!
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