Hi All-

I have created a subset of my original csv for the times I am interested in
(9, 12, 3). I have a subset for all of those times then each individually. I
would like to have specific case studies to analyze individually for those
times. For example, I want to look at 2009/06/01-2009/06/10. Is the easiest
way to created a subset of ss? I haven't been able to figure out the easiest
way since I created by subsets 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
1/4/2007 2:00   34      0       11      6       6       2.5     16      4.4
1/4/2007 3:00   37      0       NoData  6       6       2.7     NoData
1/4/2007 4:00   34      1       13      4       5       1.4     12      4
1/4/2007 5:00   23      1       15      2       4       1.4     12      4.5
1/4/2007 6:00   13      1       16      3       3       2.2     14      4.1
1/4/2007 7:00   30      0       10      5       5       2.3     15      4.8
1/4/2007 8:00   36      0       18      4       13      5.3     22      2.7
1/4/2007 9:00   38      0       23      4       23      2.8     31      1.1


  


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