Hi,
I'm doing a panel data estimation.
I'm merging (m:m) CSV files.
Till now the total number of observations is nearly15k.
But as I merge the last file total number of observations reach nearly 19k.
I want to drop unmatched observations.
.
I want to keep observations that match with the 'Master file'.
From the 'Using file' I don't want any unmatched observations.
Because that unnecessarily expand the total number of observations.
Plus, it's creating many missing observations for each variable.
Can you please help?
Best,
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