Hope this helps

I appreciate the response, I kept getting “addValue” incorrect method errors… I’m building stacked bar charts with the data. I’m using data scraped from a database, I just used those values to figure out how to actually add data to the dataset. Not quite sure what I was doing wrong but I”ll see what I can do. Again, I appreciate it, thanks!

I haven’t the foggiest idea what you’re actually trying to do, but:

# Mostly inspired by http://left.subtree.org/2007/01/15/creating-sparklines-with-jfreechart/
# have JFreeChart in your classpath, obviously, as well as jcommon.jar
require ‘java’

module Graph
  class Sparkline
    include_class ‘java.io.File’
    include_class ‘org.jfree.chart.ChartUtilities’
    include_class ‘org.jfree.chart.JFreeChart’
    include_class ‘org.jfree.data.category.DefaultCategoryDataset’
    include_class ‘org.jfree.chart.ChartFactory’
    include_class ‘org.jfree.chart.plot.PlotOrientation’

    def initialize(width=200, height=80, data=[])
      @width = width
      @height = height
      dataset = create_sample_data() if data.empty?
      @chart = create_chart(dataset)
    end

    def render_to_file(filename, format=”png”)
      javafile = java.io.File.new(filename)
      ChartUtilities.saveChartAsPNG(javafile, @chart, @width, @height)
    end

    private
    def create_sample_data
      dataset = DefaultCategoryDataset.new
      dataset.addValue(1, “Closed”, “”)
      dataset.addValue(1, “InVerfication”, “”)
      dataset.addValue(2, “Delivered”, “”)
      dataset.addValue(2, “On-hold”, “”)
      dataset.addValue(3, “In-work”, “”)
      dataset.addValue(3, “Rejected”, “”)
      dataset.addValue(3, “Duplicate”, “”)
      dataset.addValue(3, “Assigned”, “”)
      dataset.addValue(4, “Submitted”, “”)

      return dataset
    end

    def create_chart(dataset)
      chart = ChartFactory.createWaterfallChart(”Phase”,”Name”, “”, dataset, PlotOrientation::VERTICAL, true, true, false)
      return chart
    end
  end # class Sparkline
end # class Graph

sp = Graph::Sparkline.new
puts “Rendering sparkline”
sp.render_to_file(”sparkline.png”)

The following chunk of code is what I need to port over…

DefaultCategoryDataset result = new DefaultCategoryDataset();
result.addValue(0, “Closed”, “”);
result.addValue(0, “InVerfication”, “”);
result.addValue(0, “Delivered”, “”);
result.addValue(0, “On-hold”, “”);
result.addValue(0, “In-work”, “”);
result.addValue(0, “Rejected”, “”);
result.addValue(0, “Duplicate”, “”);
result.addValue(0, “Assigned”, “”);
result.addValue(0, “Submitted”, “”);