Example using Tk::PlotDataset

#!/usr/bin/perl 
use Tk;
use Tk::PlotDataset;
use Tk::LineGraphDataset;
use Math::GSL::SF qw/:all/;
use strict;

my $window = MainWindow->new(
    -title => 'Math::GSL Plot',
);
my @region = map { $_/10 } (-400 .. -1, 0, 1 .. 400);
my @data1  = map { gsl_sf_bessel_J0($_) } (@region);
my $dataset1 = LineGraphDataset->new(
    -name => 'gsl_sf_bessel_J0',
    -xData => \@region,
    -yData => \@data1,
    -yAxis => 'Y',
    -color => 'red'
);

my @data2 = map { gsl_sf_bessel_J1($_) } (@region);
my $dataset2 = LineGraphDataset->new(
    -name => 'gsl_sf_bessel_J1',
    -xData => \@region,
    -yData => \@data2,
    -yAxis => 'Y1',
    -color => 'blue'
);

my $graph = $window->PlotDataset(
    -width => 500,
    -height => 500,
    -background => 'snow'
) -> pack(-fill => 'both', -expand => 1);

$graph->addDatasets($dataset1, $dataset2);
$graph->plot;
MainLoop;
exit(1);