# By default, chart plots a baseline at the bottom of the graph. # # You can use the :baseline option to disable this behavior. # filename = File.basename(__FILE__).gsub('.rb', '.pdf') Prawn::ManualBuilder::Example.generate(filename) do data = {views: {2013 => 182, 2014 => 46, 2015 => 802000000000000000}} chart data, baseline: false, format: :float end