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st: RE: dates and elapsed time


From   "Kieran McCaul" <Kieran.McCaul@uwa.edu.au>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: dates and elapsed time
Date   Tue, 10 Aug 2010 07:05:06 +0800

...

You need to use the -date- function.

di %d date("17-Mar-85", "DM19Y")

So, if you have dates stored as strings in two variables, date1 and
date2:

gen firstdate = date(date1, "DM19Y") 
gen seconddate = date(date2, "DM19Y")
format firstdate seconddate %d

gen n_days = seconddate - firstdate






-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Kirsten Beyer
Sent: Tuesday, 10 August 2010 6:42 AM
To: statalist@hsphsun2.harvard.edu
Subject: st: dates and elapsed time

Hello,

I am relatively new to STATA and have been unsuccessful in formatting
two
dates, then calculating the number of days between them.

Dates are in the following format: 17-Mar-85

Any advice?

KB
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