Thanks a lot. That helped. One thing now is to have the difftime(y,x) to always report seconds. There are times that there is a change in the day and thus the diff will report few days difference. How can it always report only seconds?
I would like to thank you in advance for your help B.R Alex ________________________________ From: jim holtman <jholt...@gmail.com> Cc: "R-help@r-project.org" <R-help@r-project.org> Sent: Friday, October 7, 2011 5:34 PM Subject: Re: [R] Handling Time in R ?ISOdatetime > x <- ISOdatetime(2011,10,6,16,23,30.539) > str(x) POSIXct[1:1], format: "2011-10-06 16:23:30" > y <- ISOdatetime(2011,10,6,16,23,30.939) > difftime(y,x) Time difference of 0.3999999 secs > > Dear all, > I would like to ask your help regarding handling time stamps in R. I think > first I need a reference to read about their logic and how I should handle > them. > > For example, this is a struct I have > > > str(MyStruct$TimeStamps) > num [1:100, 1:6] 2011 2011 2011 2011 2011 ... > > MyStruct$TimeStamps[1,] > [1] 2011.000 10.000 6.000 16.000 23.000 30.539 > > the last field contains seconds.milliseconds. > > How I can for example make calculations with time stamps like see if the > MyStruct$TimeStamps[1,]-MyStruct$TimeStamps[2,] differ more than > 300millisecond, or 3 days have passed? > > I would like to thank you in advance for your suggestions > > B.R > Alex > > [[alternative HTML version deleted]] > > > ______________________________________________ > R-help@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 Data Munger Guru What is the problem that you are trying to solve? [[alternative HTML version deleted]]
______________________________________________ R-help@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.
