[R] ts & daily timeseries
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue Jun 22 18:41:15 CEST 2004
data.frame(time=mytime, ts=myts)
would appear to be what you are looking for.
On Tue, 22 Jun 2004 v.demartino2 at virgilio.it wrote:
> I have defined a daily timeseries for the 365 days of 2003 issuing:
>
> myts = ts(dati[,2:10],frequency=365,)
> > myts
> Time Series:
> Start = c(1, 1)
> End = c(1, 365)
> Frequency = 365
>
> and
>
> mytime = as.POSIXct(strptime(as.character(dati[,1]),format="%Y-%m-%d"))
>
> contains the dates from "2003-01-01" to "2003-12-31"
Why not use the Date class? However, if all you want is the character
representation of the dates you appear to have those in dati[1].
> How can I combine mytime and myts in order to list the timeseries according
> to the more natural
>
> 2003-01-01 xxxxx xxxxx xxxxx ......
> 2003-01-02 xxxxx xxxxx xxxxx ......
> ...........
> 2003-12-31 xxxxx xxxxx xxxxx ......
What do you want the first column to be? Character strings? Dates? What
do you want to do with this?
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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