Message-ID: <43F4BB3C.8080405@optonline.net>
Date: 2006-02-16T17:49:48Z
From: Chuck Cleland
Subject: How to convert SPSS date data to dates?
In-Reply-To: <NGBBKJEMOMLJFCOIEGCECEHBJPAA.jonathan.williams@pharm.ox.ac.uk>
Here is one way:
library(chron)
as.chron(ISOdate(1582, 10, 14) + mydata$SPSSDATE)
Jonathan Williams wrote:
> Dear R Helpers,
>
> I have imported an SPSS file that contains date data.
> The data appear in R in a numeric format, as follows:
>
> 10485849600 10477641600 10561104000 10562745600 etc.
>
> I'd be extremely grateful if someone could tell me
> how to make these numbers into comprehensible dates!
>
> Thanks,
>
> Jonathan Williams
>
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--
Chuck Cleland, Ph.D.
NDRI, Inc.
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