dts <- c("2004-8-1","2004-10-1","2001-9-1")
strptime(dts,"%Y-%m-%d")
julian(strptime(dts,"%Y-%m-%d"))
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of zhijie zhang
> Sent: Thursday, September 13, 2007 8:19 AM
> To: [EMAIL PROTECTED]
> Subject: [R] handle dates in R?
>
> Dear Rusers,
> I have some data in .csv file like "2004-8-1" and
> "2004-10-1", and i need to convert them into days from the
> origin (January 1, 1960).
> I have tried the function date.mmddyyyy(), but cannot get it.
> Anybody can show me how to handle the date data?
> Thanks very much!
>
> My dataset like:
> time
> 2004-8-1
> 2004-10-1
> 2001-9-1
> 2002-9-1
>
>
> --
> With Kind Regards,
>
> oooO:::::::::
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> [*************************************************************
> **********]
> Zhi Jie,Zhang ,PHD
> Tel:86-21-54237149
> Dept. of Epidemiology,School of Public Health,Fudan
> University Address:No. 138 Yi Xue Yuan Road,Shanghai,China
> Postcode:200032
> Email:[EMAIL PROTECTED]
> Website: www.statABC.com
> [*************************************************************
> **********]
> oooO:::::::::
> (..):::::::::
> :\.(:::Oooo::
> ::\_)::(..)::
> :::::::)./:::
> ::::::(_/::::
> :::::::::::::
>
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>
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> and provide commented, minimal, self-contained, reproducible code.
>
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