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st: RE: recording date and year


From   "Howrey, Bret T." <bthowrey@UTMB.EDU>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: RE: recording date and year
Date   Wed, 2 Jul 2008 11:55:44 -0500

Yun,
If the last 2 chars are always the year (and year is all you need) then combine string functions to extract the last two chars.  Something like:
 gen new_dob="19"+substr(old_dob,length(dob)-2,2)

Maybe.
Bret

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Yun Liu
Sent: Wednesday, July 02, 2008 11:48 AM
To: statalist@hsphsun2.harvard.edu
Subject: st: recording date and year

Hi,

I have a question about recording date and year. I am dealing with a "date of birth" variable stored in an excel file. In some cases, it's a year. In some cases, it's month and year. In other cases, it's date and year. For examples,

1965
Nov-47
1952
1952
1953
10-Oct-40

What would be the best way to record this variable in stata? Thank you!

Yun
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