GD::Graph

use strict;
use GD::Graph::mixed;
require 'save.pl';

# Also see sample17

print STDERR "Processing sample63\n";

my @data = (
["1st","2nd","3rd","4th","5th","6th","7th", "8th", "9th"],
[ 11, 12, 15, 16, 3, 1.5, 1, 3, 4],
[ 5, 12, 24, 15, 19, 8, 6, 15, 21],
[ 12, 3, 1, 5, 12, 9, 16, 25, 11],
[ 16, 24, 39, 31, 22, 9.5, 7, 18, 25],
);

my $my_graph = new GD::Graph::mixed();

$my_graph->set(
x_label => 'X Label',
y_label => 'Y label',
title => 'Emulation of error bars',
y_min_value => 0,
y_max_value => 50,
y_tick_number => 10,
y_label_skip => 2,
cumulate => 1,
types => [qw(area bars bars lines)],
dclrs => [undef, qw(lgray gray red)],
borderclrs => [undef, qw(black black black)],
line_width => 2,
bar_width => 4,

transparent => 0,
)
or warn $my_graph->error;

$my_graph->set_legend(undef, qw(increment more));
$my_graph->plot(\@data) or die $my_graph->error;
save_chart($my_graph, 'sample63');