Dear Mr. Ripley, your answer perfectly fits my needs, thank you very much. (And yes, rounding 5 to even is what I wanted).
Prof Brian Ripley wrote > > t2 <- strptime(timeStamp, format="%d.%m.%Y %H:%M") > t2$min <- round(t2$min, -1) >> format(t2, "%d.%m.%Y %H:%M") > [1] "31.03.2011 09:30" "31.03.2011 09:40" "31.03.2011 10:00" "31.03.2011 > 10:10" > [5] "31.03.2011 10:30" "31.03.2011 10:40" "31.03.2011 10:50" "01.04.2011 > 00:00" > Prof Brian Ripley wrote > > t2$min <- 10*floor((t2$min + 5)/10) > t2$min <- 10*floor((t2$min + 4)/10) > This really got me thinking and as a result increased my understanding of maths & R , a big thanks to you -- View this message in context: http://r.789695.n4.nabble.com/round-Date-object-to-10-minutes-intervals-tp4185496p4185776.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
