Hi, Try this: seq1<-seq(from=as.POSIXct("2012-05-30 18:30:00",tz="UTC"),to=as.POSIXct("2012-05-31 02:30:00",tz="UTC"),by="1 hour") seq2<-seq(from=as.POSIXct("2012-05-31 00:30:00",tz="UTC"),to=as.POSIXct("2012-05-31 08:30:00",tz="UTC"),by="1 hour") seq3<-seq(from=as.POSIXct("2012-05-31 06:30:00",tz="UTC"),to=as.POSIXct("2012-05-31 07:30:00",tz="UTC"),by="1 hour") Sys.setenv(TZ="UTC") Series1<-c(seq1,seq2,seq3) split(Series1,rep(1:3,each=9)) #or individually if it is a small dataset Series1[1:9] Series1[10:18] etc.
A.K. ----- Original Message ----- From: m p <mzp3...@gmail.com> To: r-h...@stat.math.ethz.ch Cc: Sent: Thursday, December 13, 2012 11:52 AM Subject: [R] subsetting time series Hello, my series of dates look like [1] "2012-05-30 18:30:00 UTC" "2012-05-30 19:30:00 UTC" [3] "2012-05-30 20:30:00 UTC" "2012-05-30 21:30:00 UTC" [5] "2012-05-30 22:30:00 UTC" "2012-05-30 23:30:00 UTC" [7] "2012-05-31 00:30:00 UTC" "2012-05-31 01:30:00 UTC" [9] "2012-05-31 02:30:00 UTC" "2012-05-31 00:30:00 UTC" [11] "2012-05-31 01:30:00 UTC" "2012-05-31 02:30:00 UTC" [13] "2012-05-31 03:30:00 UTC" "2012-05-31 04:30:00 UTC" [15] "2012-05-31 05:30:00 UTC" "2012-05-31 06:30:00 UTC" [17] "2012-05-31 07:30:00 UTC" "2012-05-31 08:30:00 UTC" [19] "2012-05-31 06:30:00 UTC" "2012-05-31 07:30:00 UTC" ... I'd like to subset this to four series 1) [1] "2012-05-30 18:30:00 UTC" "2012-05-30 19:30:00 UTC" [3] "2012-05-30 20:30:00 UTC" "2012-05-30 21:30:00 UTC" [5] "2012-05-30 22:30:00 UTC" "2012-05-30 23:30:00 UTC" [7] "2012-05-31 00:30:00 UTC" "2012-05-31 01:30:00 UTC" [9] "2012-05-31 02:30:00 UTC" [10] "2012-05-31 18:30:00 UTC" "2012-05-31 19:30:00 UTC" ... 2) "2012-05-31 00:30:00 UTC" -> [1] [11] "2012-05-31 01:30:00 UTC" "2012-05-31 02:30:00 UTC" -> [2,3] [13] "2012-05-31 03:30:00 UTC" "2012-05-31 04:30:00 UTC" [15] "2012-05-31 05:30:00 UTC" "2012-05-31 06:30:00 UTC" [17] "2012-05-31 07:30:00 UTC" "2012-05-31 08:30:00 UTC" [10] "2012-06-01 00:30:00 UTC" 3) [19] "2012-05-31 06:30:00 UTC" "2012-05-31 07:30:00 UTC" ... so that I can plot data for each of the series separately without e.g. data at hour "2012-05-31 02:30:00 UTC" connecting in the figure to "2012-05-31 00:30:00 UTC" Basically, cycling through the series with period 9 Thanks for any suggestions/help, thanks, Mark [[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. ______________________________________________ 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.