[R] time serie generation

[Achim Zeileis]

On Fri, 1 Jun 2007 12:51:35 +0200 jessica.gervais at tudor.lu wrote:

> 
> Dear all,
> 
> I would like to generate a regular time serie, i.e. a list of dates
> and time for each our of the period 2002-2004.

use the seq() method for "POSIXct" objects:

seq(from = as.POSIXct("2002-01-01 00:00:00"),
    to = as.POSIXct("2004-12-31 23:00:00"),
    by = "hour")

hth,
Z

> the time format should be
> "2002-01-01 12:00:00" (year-month-day hour:min:sec)
> 
> 
> so the list should contain all hours of the period 2002-2004
> 2002-01-01 00:00:00
> 2002-01-01 01:00:00
> 2002-01-01 02:00:00
> ...
> 2004-12-31 23:00:00
> Does a function exist to create that kind of list ?
> 
> Thanks in advance,
> 
> 
> Jessica
> 
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