Subset a datafram according to time
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 <nickthomas125 at 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.
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