in reply to Intro to plotting with perl

You can use GD. here is an example using points:
use GD::Graph::points; my $graph = GD::Graph::points->new; $graph->set( x_label => 'Label', y_label => 'Values', title => 'Label By Value', #cumulate => 1, dclrs => [ 'black', 'black','black','black','black','b +lack','black' ], borderclrs => [ qw(black black), qw(black black) ], bar_spacing => 4, transparent => 1, show_values => 1, ); my $gd = $graph->plot(\@data) or die $graph->error; open(IMG, ">","$graph_file") or die $!; binmode IMG; print IMG $gd->gif; close IMG;