N�dia wrote (via Nick):
How can I generate an identifier from three variables?
In my data I have a column for the house, one for the family and one for the individual
example:
house family individual
1 1 1
1 1 2
1 1 3
2 1 1
2 1 2
...
and I would like to know how can I create an identifier per individual such as:
individual
010101
010102
010103
020101
...
-------------------------------------------------------------
Nick immediately advised against creating a composite identifier.
In my experience, it can sometimes be quite useful. Here N�dia could:
egen id = concat(house-individual), format(%02.0f)
For this to work, there must be no missing values in the original
identifiers. If there are, things get messy.
Hope this helps
Svend
________________________________________________________
Svend Juul
Institut for Folkesundhed, Afdeling for Epidemiologi
(Institute of Public Health, Department of Epidemiology)
Vennelyst Boulevard 6
DK-8000 Aarhus C, Denmark
Phone, work: +45 8942 6090
Phone, home: +45 8693 7796
Fax: +45 8613 1580
E-mail: [email protected]
_________________________________________________________
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