I am working with a multi-record-per-case observational data set and have a
problem. Specifically, it turns out that within cases, duration times for
single records can span more than one year. Accordingly time-varying
explanatory variables that carry different information by year are not
accurate for that record. For example,
ID Entry Exit pwom
4 01/14/82 07/08/86 50.2
4 07/08/86 12/31/86 52.6
4 01/01/87 04/30/87 57.5
As you see, pwom varies for records 2 and 3 but not so for record 1, which
covers a period of nearly 4 yrs but nonetheless carries a constant value
for pwom. I cannot not locate a procedure in Stata for splitting record 1.
Any suggestions would be greatly appreciated. Thanks.
