[R] formating chron date times for printing
ssefick at gmail.com
Tue Jun 29 20:23:52 CEST 2010
Thank you very much for your swift reply. I have not used POSIXct
much, but I do remember having issues with time zones in POSIXx.
Should I be aware of this, or is this not a problem. I have set the
data recorders to stay one time and one time zone and never change, so
that I don't have to worry about this.
On Tue, Jun 29, 2010 at 1:14 PM, Phil Spector <spector at stat.berkeley.edu> wrote:
> Stephen -
>> format(as.POSIXct(x),"%Y-%m-%d %H:%M:%S")
>  "2009-08-07 17:00:00" "2009-08-07 17:15:00" "2009-08-07 17:29:59"
>  "2009-08-07 17:45:00" "2009-08-07 18:00:00"
> - Phil Spector
> Statistical Computing Facility
> Department of Statistics
> UC Berkeley
> spector at stat.berkeley.edu
> On Tue, 29 Jun 2010, stephen sefick wrote:
>> the date were created with chron with this argument
>> format=c(dates="Y/m/d", times="H:M:S"))
>> so I have the dates being displayed as
>> (10/06/22 12:00:00)
>> I would like to have them displayed as
>> "2010-06-22 12:00:00" or "%Y-%m-%d %H:%M:%S"
>> and then I can convert these for mergeing with another data frame
>> x <- (structure(c(14464, 14464.0104166667, 14464.0208333333, 14464.03125,
>> 14464.0416666667), format = structure(c("Y/m/d", "H:M:S"), .Names =
>> "times")), origin = c(1, 1, 1970), class = c("chron", "dates",
>> reading through old posts I found this:
>> format(x, enclosed = c("", ""))
>> which put the which surrounds the date time with "" instead of ()
>> now I would like to change the format of the dates to print like the
>> above specified.
>> kindest regards,
>> Stephen Sefick
>> | Auburn University |
>> | Department of Biological Sciences |
>> | 331 Funchess Hall |
>> | Auburn, Alabama |
>> | 36849 |
>> | sas0025 at auburn.edu |
>> | http://www.auburn.edu/~sas0025 |
>> Let's not spend our time and resources thinking about things that are
>> so little or so large that all they really do for us is puff us up and
>> make us feel like gods. We are mammals, and have not exhausted the
>> annoying little problems of being mammals.
>> -K. Mullis
>> R-help at r-project.org mailing list
>> PLEASE do read the posting guide
>> and provide commented, minimal, self-contained, reproducible code.
| Auburn University |
| Department of Biological Sciences |
| 331 Funchess Hall |
| Auburn, Alabama |
| 36849 |
| sas0025 at auburn.edu |
| http://www.auburn.edu/~sas0025 |
Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods. We are mammals, and have not exhausted the
annoying little problems of being mammals.
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