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ss1
2011 Nov 14
1
Subset of a subset?
...ts based on the hour.
Thanks for any help!!
da=paste(Date)
tiso= strptime(da,format="%d/%m/%Y %H:%M")
tiso$h
df1= data.frame(tiso, mv)
## creating a subset of 9am, 12pm and 3pm.
ss= subset(mv, tiso$h==9| tiso$h ==12| tiso$h==15)
ss9= subset(mv, tiso$h==9)
ss12= subset(mv, tiso$h==12)
ss15= subset (mv, tiso$h==15)
##create a subset of each event
ss0609= subset( ss, tiso==2009-06-01 | tiso==2009-06-02)
Example of Data:
Date T002_03 T002_25 T004_03 T004_25 T006_03
31/03/2007 23:00 31 3 18 5 6 5.8 7 3.5
1/4/2007 0:00 30 2 16 5 7 2.5 8 4.7
1/4/2007 1:00 34 1 15 4 7 2.7 12 4.4
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