#!/usr/bin/perl -w use strict; use Chart::Gnuplot; # Chart object my $chart = Chart::Gnuplot->new( output => "dataSrc_5.png", ); # Data set object # - A vertical straight line my $vertical = Chart::Gnuplot::DataSet->new( func => {x => 0, y => 't'}, title => 'vertical line', ); # Plot the graph $chart->plot2d($vertical);