gen survey = "country name"
egen cluster_ID=group(survey v001)
egen stratum_ID = group(survey v023)
Is this code correct because I see that it doesn't seem unique to see the same v001 from the same country in the data, for example, the BDKR7R file and the BDKR51FL file seem to be in different regions from the same v001. Would it make more sense to use gen survey="v000"