106 lines
2.8 KiB
Perl
Executable File
106 lines
2.8 KiB
Perl
Executable File
#!/usr/bin/perl -w
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use strict;
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use TimeSeries;
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use Getopt::Long;
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use Pod::Usage;
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=head1 NAME
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tsplot - plot time series in column format
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=head1 SYNOPSIS
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tsplot
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[--finalresolution dpi]
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[--legend-position pos]
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[--output-format format ]
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[--stacked]
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[--style style]
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[--time_t]
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[--tsv]
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[--yrange min max]
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[file ...]
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=head1 DESCRIPTION
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This program expects time series data in column format, I.e.,
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each line contains a timestamp and the values for each series, except
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the first one which contains the column headers, which are used for the
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legend. Columns are separated by any amount of whitespace unless the
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--tsv option is given which enables tab-separated columns.
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The default legend position is "top right", same as with gnuplot.
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Another frequently useful position (especially if you have lots of series)
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is "below". Note that positions which consist of several words (such as
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"top right") need to be passed to tsplotv as a single argument, so the
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space needs to be hidden from the shell by use of quotes or a backslash.
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The default output format is "png", the default style is "lines".
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See L<TimeSeries> for a description of possible legend positions,
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output formats, and styles.
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The --stacked option causes the time series to be stacked on top of each
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other.
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The --time_t option specifies that the timestamps are in seconds since
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the epoch. Otherwise they are parsed by add_timestring function (which
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in turn uses the parse_date function of the HTTP::Date module).
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=cut
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my $output_format ='png';
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my $log_y =0;
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my $time_t =0;
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my $style = "lines";
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my $tsv = 0;
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my $stacked = 0;
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my @yrange;
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my $keeptempfiles;
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my $finalresolution;
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my $legend_position = 'top right';
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GetOptions('output_format|output-format=s' => \$output_format,
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'log_y|log-y' => \$log_y,
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'time_t' => \$time_t,
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'style=s' => \$style,
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'tsv' => \$tsv,
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'stacked' => \$stacked,
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'yrange=s{2}' => \@yrange,
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'keeptempfiles' => \$keeptempfiles,
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'finalresolution=i' => \$finalresolution,
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'legend-position=s' => \$legend_position,
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)
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or pod2usage(verbose => 0);
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my $sep = $tsv ? qr/\t/ : ' ';
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binmode STDOUT, ':raw';
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my $ts = TimeSeries->new(output_format => $output_format);
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$ts->{keeptempfiles} = 1 if $keeptempfiles;
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$ts->legend_position($legend_position);
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while (<>) {
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chomp;
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my @legend = split($sep);
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shift @legend; # first must be for timestamp
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$ts->legend(@legend);
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last;
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}
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while (<>) {
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chomp;
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my ($timestamp, @values) = split($sep);
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if ($time_t) {
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$ts->add($timestamp, @values);
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} else {
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$ts->add_timestring($timestamp, @values);
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}
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}
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$ts->log_y($log_y);
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$ts->style($style);
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$ts->stacked($stacked);
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$ts->yrange(@yrange);
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$ts->finalresolution($finalresolution) if $finalresolution;
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my $g = $ts->plot();
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print $g
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