use Chart::PNGgraph::bars;
print STDERR "Processing sample 1-3\n";
@data = (
["1st","2nd","3rd","4th","5th","6th","7th", "8th", "9th"],
[ 5, 12, 24, 33, 19, 8, 6, 15, 21],
[ 1, 2, 5, 6, 3, 1.5, 1, 3, 4]
);
$my_graph = new Chart::PNGgraph::bars();
$my_graph->set(
x_label => 'X Label',
y_label => 'Y label',
title => 'Bars in front of each other',
y_tick_number => 8,
y_label_skip => 2,
overwrite => 1,
);
$my_graph->plot_to_png( "sample13.png", \@data );
exit;