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54 lines
1.4 KiB
Perl
Executable File
54 lines
1.4 KiB
Perl
Executable File
#!/usr/bin/perl -w
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#
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# $Id: smooth.pl,v 1.1 2006/05/16 14:24:50 srhea Exp $
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#
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# Copyright (c) 2006 Sean C. Rhea (srhea@srhea.net)
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the Free
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# Software Foundation; either version 2 of the License, or (at your option)
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# any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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# more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc., 51
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# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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#
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use strict;
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if ($#ARGV < 0) {
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print "usage: smooth.pl <window length in seconds>\n";
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exit 1;
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}
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my $len = $ARGV[0] / 60.0;
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my $count = 0;
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my $total = 0;
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my $start_time = 0;
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while (<STDIN>) {
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if (m/^#/) {
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}
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else {
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my @cols = split;
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if (!($cols[1] eq "NaN")) {
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++$count;
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$total += $cols[1];
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}
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if ($cols[0] >= $start_time + $len) {
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if ($count > 0) {
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printf "$start_time %f\n", $total / $count;
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}
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$start_time = $cols[0];
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$total = 0;
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$count = 0;
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}
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}
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}
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