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

# Also see sample63

print STDERR "Processing sample 1-7\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],
);

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

$my_graph->set( 
    x_label         => 'X Label',
    y_label         => 'Y label',
    title           => 'Stacked Bars (incremental)',
    y_max_value     => 50,
    y_tick_number   => 10,
    y_label_skip    => 2,
    cumulate        => 1,
    dclrs           => [ undef, qw(dgreen green) ],
    borderclrs      => [ undef, qw(black black) ],
    bar_spacing     => 4,

    transparent     => 0,
);

$my_graph->set_legend(undef, qw(low high));
$my_graph->plot(\@data) or die $my_graph->error;
save_chart($my_graph, 'sample17');