Hello, I want to merge all 8 SHARE project dataset waves and I'm facing a problem of doubled individuals. Each wave has various datasets each one with the topic of variables they code (some of them are common to all waves and others to less). because the data is longitudinal, I've tried with merge 1:1 and I reach a point where the programs says mergeid does not uniquely identify observations. I'm using STATA 14.
Does anyone know if I can merge specific variables from each wave dataset to convince them In one? Thanks in advance
Does anyone know if I can merge specific variables from each wave dataset to convince them In one? Thanks in advance
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