[R] Help with time in R

[Saeed Abu Nimeh]

You can use strptime to specify the format of the date and time you want, e.g.

> x1<-strptime(x, "%Y-%m-%d %H:%M:%S")
> x1
[1] "2010-04-02 12:00:05"
> str(x1)
 POSIXlt[1:1], format: "2010-04-02 12:00:05"

On Wed, Jul 21, 2010 at 8:02 AM, Aaditya Nanduri
<aaditya.nanduri at gmail.com> wrote:
> Ms. Chisholm,
>
> If you could tell us how you plan to use the variables, we will have a
> better understanding of what you are looking for and will be able to help
> you.
> Are you looking for the time in seconds? In that case, do as Mr. Holfman
> says. He just skipped the part about converting the factors to characters.
> You can do that by:
> y <- as.character(x) where x is the vector of factors.
>
> Are you looking to have a list of hours, minutes and seconds? That can be
> done too...Although it would be much easier to just have hours and min.sec
>
> On Tue, Jul 20, 2010 at 7:33 AM, Sarah Chisholm <sarah.chisholm.09 at ucl.ac.uk
>> wrote:
>
>> Hi,
>>
>> I have a problem with the time formatting in R. I have entered time in the
>> format "MM:SS.xyz" and R has automatically classified this as a factor, but
>> I need it numerically. However when I use as.numeric() it gives me totally
>> different numbers. Is there any way I can tell R to read thes input as a
>> number?
>>
>> Thank you very much
>>
>>        [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
>
> --
> Aaditya Nanduri
> aaditya.nanduri at gmail.com
>
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>