Raphael wrote:
I have 100 subjects with 6 obs each. I would like to create a new
variable containing 1s for the first three obs and 2s for the
remaining obs for each id.
=====================================================
An illustration:
clear
set obs 100
generate id=_n
expand 6
sort id
by id: generate byte obsno=_n
generate byte group = ceil((obsno-0.1)/3)
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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