Stata merge command: choosing between 1:1 and m:1 joins without duplicating data
Learn when to use Stata's 1:1 and m:1 merge commands, how the _merge variable works, and how to avoid type mismatches and data duplication when combining datasets.
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Learn when to use Stata's 1:1 and m:1 merge commands, how the _merge variable works, and how to avoid type mismatches and data duplication when combining datasets.