Hello, I am a relatively new STATA user.
In my dataset I have multiple records for every individual according
to how many observations they have had. Each individual is identified
by a username and within each username each record is identified by a
unique number starting from 0, 1, 2, etc up to 9. I also have up to 9
variables that are dates of the observations, plus an entry date into
the study and an exit date.
What I would like to do is for every individual, create an "entry"
variable and an "exit" variable that is for
the first record: entry = entry date , exit = date observation 1
second record: entry = date observation1, exit = date observation3
third record: entry = date observation3, exit = date observation4
etc etc
until the last record: entry = date last observation, exit = exit date
Can anyone help me? The observations are also of 2 types and I would
also like to create variables in a similar fashion to "entry" and
"exit" according to what type of observation it is.
I look forward to anyones response
Regards
Hannah Moore [email protected]
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Hannah Moore BSc(Hons)
Research Assistant
InterRett - IRSA Rett Phenotype Database
Australian Rett Syndrome Study
Telethon Institute for Child Health Research
PO Box 855, West Perth
AUSTRALIA, 6872
Ph: +61 (8) 9489 7781
Fax: +61 (8) 9489 7700
Mob: 0409 100 007
Email: [email protected]
:)
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