R help - Feb 2009 - help regarding storing time difference values in same unit?

Dear R-Experts, 

Seek your help.

In a List object e.g. Time_duration[[]], I am storing differece between two
time-stamps (start-time and end-time) for a certain event. 
Time difference does not remain constant for, say, 10 observations.
Each time, the time difference is given in different time units: seconds /
hours / minutes.
Can you please tell me - how I can store the values of time difference in
just one time unit ?
It can be either seconds, or minutes or hours. The criterion is - unit
should be consistent.

Thank you in advance.

Regards,
Suresh




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If you are using 'difftime', you can specify the units:
> x <- as.POSIXct(c('2009-01-01 10:00', '2009-03-04
13:00'))
> x
[1] "2009-01-01 10:00:00 GMT" "2009-03-04 13:00:00
GMT"
> difftime(x[2], x[1])
Time difference of 62.125 days
> difftime(x[2], x[1], units='secs')
Time difference of 5367600 secs
>

On Thu, Feb 5, 2009 at 4:40 AM, Suresh_FSFM <suresh.ghalsasi at gmail.com>
wrote:
>
> Dear R-Experts,
>
> Seek your help.
>
> In a List object e.g. Time_duration[[]], I am storing differece between two
> time-stamps (start-time and end-time) for a certain event.
> Time difference does not remain constant for, say, 10 observations.
> Each time, the time difference is given in different time units: seconds /
> hours / minutes.
> Can you please tell me - how I can store the values of time difference in
> just one time unit ?
> It can be either seconds, or minutes or hours. The criterion is - unit
> should be consistent.
>
> Thank you in advance.
>
> Regards,
> Suresh
>
>
>
>
> --
> View this message in context:
http://www.nabble.com/help-regarding-storing-time-difference-values-in-same-unit--tp21847883p21847883.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> 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.
>


-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

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