<%// SubgroupData:%>

    <%
    // To generate a bar chart that displays subgroups (segments) within each bar,
    // assign the Subgroup variable role to a categorical variable whose unique
    // values can be used to form the bar segments.
    %>

    <%@page import="
      com.sas.servlet.tbeans.graphics.html.BarChart,
      com.sas.graphics.components.barchart.BarChartTableDataModel,
      com.sas.graphics.components.AnalysisVariable,
      com.sas.graphics.components.ClassificationVariable,
      com.sas.swing.models.TableModelAdapter,
      com.sas.models.SimpleTable"
    %>

    <%
     // Create a BarChart instance
        BarChart barChart = new BarChart();

     // Create a simple SAS table and add data to it
        SimpleTable table = new SimpleTable();
    %>

    <%@ include file="EnergyData.jsp" %>

    <%
     // Convert a simple SAS table to a simple Java Swing table
        TableModelAdapter tma = new TableModelAdapter(table);
        tma.setFormattedDataUsed(false);

     // Create a data model and attach the data source
        BarChartTableDataModel dataModel=
          new BarChartTableDataModel(tma);

     // Assign the data model to the BarChart
        barChart.setDataModel(dataModel);

     // Assign the Subgroup role to a categorical variable
        dataModel.setSubgroupVariable(
          new ClassificationVariable("Year"));

      // Assign the Category variable role, and optionally the
      // Response variable role, to appropriate variable(s)
         dataModel.setCategoryVariable(
           new ClassificationVariable("EnergyType"));
         dataModel.setResponseVariable(
           new AnalysisVariable("Produced"));

     // Assign the data model to the BarChart
        barChart.setDataModel(dataModel);

     // Set a graph title
        barChart.getTitle1().setText("Energy Production");

     // Set HTTP-specific response and request functionality
        barChart.setResponse(response);
        barChart.setRequest(request);

     // Write the chart to the display
        barChart.write(out);
    %>