[R] Subset a datafram according to time

[NickNz125]

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.