I don't quite understand what your code is doing. I suspect that what you are trying to do is pretty simple, but I'd need more details to give you more specific advice.

Update: OK, I made an attempt to recode what you wrote (see below). It's not exactly the same, but it should give you an idea of how to do what you want to do.

Also, as a wild guess, maybe the reason for the anomalous results you were getting is that you were inadvertently using floats as hash keys (in %Counter, etc.). The code you showed doesn't have this problem, because these hashkeys end up being all integers, but I wonder if that may have not been the case for the code that actually generated the output that you posted.

use strict;
use warnings;
my ( $cmd, $err );

my ( @Counter, @Tot );
my ( $time, $interval, $n_elements, @data )
  = split(/,/, scalar <DATA>);

my $start = my $seconds = time;
for my $data ( @data ) {
  my $value;
  $seconds += $interval;
  if ( $interval == 60 ) {
    $value = sprintf("%0.2f", $data/1000);
  }
  else {
    $value = sprintf("%0.2f", ($data*8)/1000);
  }
  my $bin = int( ( $seconds-$start )/300 );
  $Counter[ $bin ]++;
  $Tot[ $bin ] += $value;
  # etc.
}

use POSIX 'strftime';
my $t = int( $start/300 )*300;
for my $i ( 0..$#Counter ) {
  my $timestring =
    strftime( "%m/%d/%y.%H:%M:%S", localtime( $t ) );
  print join("\t", $timestring, $Counter[ $i ], $Tot[ $i ]), $/;
  $t += 300;
}
__DATA__
07:30:04,60,750,32058,41,98,41,41,98,43,41,73,98,18050,467,428,260,363
+,836,258,1499,247,489,1208,469,633,749,439,342,258,706,817,639,2174,8
+48,909,557,876,1633,1116,1090,665,1150,817,1592,791,1741,935,675,2370
+,2039,2121,911,1955,1526,608,656,375,1488,529,376,268,1082,1858,2036,
+1282,859,1356,1654,1620,2074,1546,488,2999,1564,1509,811,1427,2149,61
+1,1548,803,2313,1823,1575,1733,1168,2511,1034,2090,1491,2361,2663,206
+2,1455,957,3549,3097,2443,2680,2262,2152,2176,2645,3029,2078,1395,196
+1,801,1955,1395,1465,1030,976,1026,813,932,1745,450,1172,1457
__END__
04/28/05.18:20:00       4       32.24
04/28/05.18:25:00       5       0.29
04/28/05.18:30:00       5       19.31
04/28/05.18:35:00       5       3.21
04/28/05.18:40:00       5       3.55
04/28/05.18:45:00       5       2.57
04/28/05.18:50:00       5       5.13
04/28/05.18:55:00       5       5.39
04/28/05.19:00:00       5       6.09
04/28/05.19:05:00       5       8.15
04/28/05.19:10:00       5       5.67
04/28/05.19:15:00       5       3.05
04/28/05.19:20:00       5       7.12
04/28/05.19:25:00       5       8.25
04/28/05.19:30:00       5       7.37
04/28/05.19:35:00       5       6.54
04/28/05.19:40:00       5       8.6
04/28/05.19:45:00       5       9.48
04/28/05.19:50:00       5       10.69
04/28/05.19:55:00       5       12.63

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the lowliest monk

In reply to Re: Avoiding Datecalc by tlm
in thread Avoiding Datecalc by Earindil

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