Hi John,
I had the same problem yesterday and solved it like following:
seq(ISOdate(Year,Month,Day,Hour), by="hour", length=24*365)
for example: seq(ISOdate(2005,1,1,0), by="hour", length=8760)
Regards,
Solveig
EIFER
Europäisches Institut für Energieforschung
Institut européen de recherche sur l'énergie
European Institute for Energy Research
Solveig Mimler
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76131 Karlsruhe
Tel: +49 721 6105 1351
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EIFER
Europäisches Institut für Energieforschung,
Electricité de France / Universität Karlsruhe (TH) EWIV
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Message: 27
Date: Wed, 5 Nov 2008 16:14:19 +0100
From: "Gustaf Rydevik" <[EMAIL PROTECTED]>
Subject: Re: [R] Simple rep() question duplicating times and dates.
To: [EMAIL PROTECTED]
Cc: R R-help <[EMAIL PROTECTED]>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
On Wed, Nov 5, 2008 at 4:02 PM, John Kane <[EMAIL PROTECTED]> wrote:
>
> I want to create a data.frame of time and date for a year. I started
with the idea of simply producing two vectors (time and date)
>
> The first part ( time) is easy.
> rep(1:24, 365)
>
> But how do I get a series of 24 dates for O1 January 2005 and repeat
this to 31 December 2005.
>
> It should be easy but I don't see it.
>
> Thanks
Hi John,
?Date leads you to (among other things) ?seq.Date.
Something like this should work:
time<-rep(1:24, 365)
dates<-seq(as.Date("01012005",format="%d%m%Y"),as.Date("31122005",format="%d%m%Y"),by=1)
TimeFrame<-data.frame(time)
TimeFrame$dates<-rep(dates,each=24)
Regards,
Gustaf
--
Gustaf Rydevik, M.Sci.
tel: +46(0)703 051 451
address:Essingetorget 40,112 66 Stockholm, SE
skype:gustaf_rydevik
------------------------------
Message: 28
Date: Wed, 5 Nov 2008 07:30:31 -0800 (PST)
From: John Kane <[EMAIL PROTECTED]>
Subject: Re: [R] Simple rep() question duplicating times and dates.
To: Gustaf Rydevik <[EMAIL PROTECTED]>
Cc: R R-help <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii
I don't have R on this machine to try it but it looks good to me. I had
even got as far as seq() but completely missed the use of "each".
Thanks very much.
--- On Wed, 11/5/08, Gustaf Rydevik <[EMAIL PROTECTED]> wrote:
> From: Gustaf Rydevik <[EMAIL PROTECTED]>
> Subject: Re: [R] Simple rep() question duplicating times and dates.
> Cc: "R R-help" <[EMAIL PROTECTED]>
> Received: Wednesday, November 5, 2008, 10:14 AM
> On Wed, Nov 5, 2008 at 4:02 PM, John Kane
> >
> > I want to create a data.frame of time and date for a
> year. I started with the idea of simply producing two
> vectors (time and date)
> >
> > The first part ( time) is easy.
> > rep(1:24, 365)
> >
> > But how do I get a series of 24 dates for O1 January
> 2005 and repeat this to 31 December 2005.
> >
> > It should be easy but I don't see it.
> >
> > Thanks
>
>
> Hi John,
>
> ?Date leads you to (among other things) ?seq.Date.
>
> Something like this should work:
>
> time<-rep(1:24, 365)
>
dates<-seq(as.Date("01012005",format="%d%m%Y"),as.Date("31122005",format="%d%m%Y"),by=1)
> TimeFrame<-data.frame(time)
> TimeFrame$dates<-rep(dates,each=24)
>
>
> Regards,
> Gustaf
> --
> Gustaf Rydevik, M.Sci.
> tel: +46(0)703 051 451
> address:Essingetorget 40,112 66 Stockholm, SE
> skype:gustaf_rydevik
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