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st: Equal times in TDC data set


From   "Lythgoe, Dan" <D.Lythgoe@liverpool.ac.uk>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: Equal times in TDC data set
Date   Thu, 22 Nov 2012 16:14:29 +0000

Dear Statalisters,

I am playing around with time dependent variates and have a data set in the following format:

id	record_no	time	event
6	1		1	0
6	2		15	1
7	1		5	0
7	2		30	1
8	1		10	0
8	2		10	1

In order to -stset- my data I cannot have two equal times for the same patient (as per patient 8 above). Is there a straight-forward way of adding, say, 0.1 to the second observation for all patients with two identical times?

Many thanks in advance
Dan Lythgoe


 

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