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Time differences calculations

To: s-news@lists.biostat.wustl.edu
Subject: Time differences calculations
From: vincent.duval@boehringer-ingelheim.com
Date: Wed, 20 Jun 2007 10:32:03 +0200
Thread-index: AcezFXokPdxHl8pnQmmUHimelwvUXQ==
Thread-topic: Time differences calculations

Dear S-plus users,
I have a problem computing time differences using S-plus.
I have dates that are given using the following format: 20080620.00, where the 4 first digits represent the year, the next 2 ones the month and the last 2 ones the day. I would need to compute time differences between two vectors of this given format.

I tried around trying to change this format into any type of time series without any success.
Could some one provide me with some useful suggestion and/or tip to know where to look?
I am using S-plus 7 under Windows XP
Thanks for your help,
Vincent

 

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