My master dataset has repeated measures therefore an id does not uniquely identify an observation but the id uniquely identifies an observation in the using dataset. the using dataset is sociodemographic data which is missing in the master dataset. I would like to merge these two datasets so that each observation in the master dataset has sociodemographic data. How do I do this?
Apologies if this has already been answered before, I looked at threads with related questions but they were confusing.
Apologies if this has already been answered before, I looked at threads with related questions but they were confusing.
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