In the first line of dataframe 3, I don't see where the value of 2.456 for ObsrG came from. Can you give us a hint of how that was computed?
Sent from my iPad On Feb 9, 2012, at 21:05, NickNz125 <nickthomas...@gmail.com> wrote: > I want the combine and align by time DATAFRAME1 with DATAFRAME2. DF1 is > second observations and DF2 6 minutes observations want to extract the ObsrG > data from DF1 to match the times in DF2. Therefore getting DF3 with > Observations (Obsrg) extracted from DF1 to match the times in DF2. > > DATAFRAME1 > Date Time ObsrG > 02/08/2011 00:00:01 1.167 > 02/08/2011 00:00:02 1.788 > 02/08/2011 00:00:03 1.677 > 02/08/2011 00:00:04 1.313 > 02/08/2011 00:00:05 1.110 > 02/08/2011 00:00:06 1.248 > 02/08/2011 00:00:07 1.187 > > DATAFRAME2 > Date Time Obsr > 02/08/2011 00:00 1.154 > 02/08/2011 00:06 1.041 > 02/08/2011 00:12 1.090 > 02/08/2011 00:18 1.093 > 02/08/2011 00:24 1.100 > 02/08/2011 00:30 1.098 > 02/08/2011 00:36 1.177 > > DATAFRAME 3 > > Date Time Obsr ObsrG > 02/08/2011 00:00 1.154 2.456 > 02/08/2011 00:06 1.041 2.341 > 02/08/2011 00:12 1.090 1.893 > 02/08/2011 00:18 1.093 1.783 > 02/08/2011 00:24 1.100 1.689 > 02/08/2011 00:30 1.098 1.768 > 02/08/2011 00:36 1.177 1.892 > > > -- > View this message in context: > http://r.789695.n4.nabble.com/Subset-a-datafram-according-to-time-tp4372293p4375096.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. ______________________________________________ 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.
