My boss wants the following data graphed out as a stacked bar graph in 5 minute intervals. As you can see, the data is collected every 2 minutes. Somehow, I need to break it down into 5 minute chunks and average the numbers in those chunks. So the first two sets would end up like this:
	08/07/03.22:55 TOT/3 TOT/3 TOT/3 TOT/3 TOT/3
	08/07/03.23:00 TOT/2 TOT/2 TOT/2 TOT/2 TOT/2
Every thing I've come up with/attemted has looked like a horrible mess/hack. Any suggestions on what I could do here would be highly appreciated. 
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08/07/03.22:55  1.029   1.172   1.03    0.086   0.382   
08/07/03.22:57  0.829   2.284   1.219   0.087   0.439   
08/07/03.22:59  2.437   0.792   0.809   0.087   0.305   

08/07/03.23:01  0.653   1.089   0.541   0.116   0.351   
08/07/03.23:03  0.823   2.407   0.826   0.04    0.23    

08/07/03.23:05  0.797   1.016   0.619   0.195   0.274   
08/07/03.23:07  1.742   0.901   1.078   0.087   0.328   
08/07/03.23:09  0.897   1.218   0.512   0.096   0.252   

08/07/03.23:11  1.146   1.281   0.521   0.086   0.276   
08/07/03.23:13  0.924   1.129   0.891   0.4     0.456   

08/07/03.23:15  1.103   1.383   1.645   0.09    0.387   
08/07/03.23:17  0.86    2.078   1.098   0.635   0.36    
08/07/03.23:19  3.832   1.911   0.808   0.086   0.309   
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Here is the current code that is generating this data from the raw log file and not doing any 5 minute chunking. 
open OUT, ">$Output_Directory/sitescope.dat" or die "Can't open OUTPUT
+ file: $!";
foreach (@data) {
        @tmp = split(/\t/);
                ($time,$date) = split(/ /,$tmp[0]);
                $date =~ s/2003/03/g;
                $time = substr($time,0,5);
                $mday = substr($date,3,2);
                $hour = substr($time,0,2);
                print OUT "$date\.$time\t";
                foreach (@tmp[1..5]) {
                        $seconds = $_/1000;
                        print OUT "$seconds\t";
                }
        print OUT "\n";
}
close OUT;

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In reply to data manipulation by Earindil

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