// Error Values:

// To use error values in a chart, specify multiple columns on the
// AnalysisVariable(s) used in the plot. The first specified column
// is used for the variable's assigned roll, the second for the
// high errors, and the third for the low errors.

import java.awt.BorderLayout;
import javax.swing.JApplet;
import javax.swing.table.DefaultTableModel;
import com.sas.graphics.components.AnalysisVariable;
import com.sas.graphics.components.ClassificationVariable;
import com.sas.graphics.components.barchart.BarChart;
import com.sas.graphics.components.barchart.BarChartModel;
import com.sas.graphics.components.barchart.BarChartTableDataModel;
import com.sas.graphics.components.GraphConstants;
import com.sas.graphics.components.NoteModel;

public class ErrorValues extends JApplet {

  public void init() {

  // Create a BarChart and a data model (data defined below)
     BarChartTableDataModel dataModel = null;
     dataModel = new BarChartTableDataModel(new TestData());

  // Create two AnalysisVariables with error values
     AnalysisVariable errResponse=new AnalysisVariable(
       "Var2"                        // column for Response role
      , null                         // format
      , null                         // informat
      , "Var2 label"                 // label
      , GraphConstants.STATISTIC_SUM // statistic
      , "Var3"                       // highColumnName
      , "Var3 label"                 // highLabel
      , "Var4"                       // lowColumnName
      , "Var4 label"                 // lowLabel
      );

  // Assign variable roles
     dataModel.setResponseVariable(errResponse);
     dataModel.setCategoryVariable(new ClassificationVariable("Var1"));

  // Create a bar chart and get its model
     BarChart barChart = new BarChart(dataModel);
     BarChartModel graphModel = barChart.getGraphModel();

  // Set a graph title
     NoteModel title=barChart.getTitle1();
     title.setText(
              "Use Error Values");

  // Add the BarChart to the Applet's content pane
     getContentPane().add(barChart,BorderLayout.CENTER);
  }

  // Create the data source
     static private class TestData extends DefaultTableModel {

     private static Class  columnClass[]={ String.class
                                         , Double.class
                                         , Double.class
                                         , Double.class
                                         };
     private static String columnNames[]={ "Var1"
                                         , "Var2"
                                         , "Var3"
                                         , "Var4"
                                         };
     public TestData() {
      super();
      Object data[][]={ 
            {"2001",  new Double( 52),  new Double( 13),  new Double( 15)} 
          , {"2001",  new Double( 52),  new Double(  5),  new Double( 25)}
          , {"2001",  new Double( 38),  new Double( 24),  new Double( 12)}
          , {"2001",  new Double( 77),  new Double( 18),  new Double( 11)}
          , {"2001",  new Double( 34),  new Double( 26),  new Double( 19)}
          , {"2001",  new Double( 92),  new Double( 12),  new Double( 33)}
          , {"2001",  new Double( 60),  new Double( 31),  new Double( 17)}
          , {"2001",  new Double( 29),  new Double( 17),  new Double( 28)}

          , {"2002",  new Double( 35),  new Double( 25),  new Double( 25)}
          , {"2002",  new Double( 10),  new Double( 10),  new Double( 10)}
          , {"2002",  new Double( 15),  new Double( 15),  new Double( 15)}
          , {"2002",  new Double( 20),  new Double( 20),  new Double( 20)}
          , {"2002",  new Double( 25),  new Double( 25),  new Double( 25)}
          , {"2002",  new Double( 30),  new Double( 30),  new Double( 30)}
          , {"2002",  new Double( 35),  new Double( 35),  new Double( 35)}

          , {"2003",  new Double( 55),  new Double(-15),  new Double(-15)}
          , {"2003",  new Double( 30),  new Double( 10),  new Double( 10)}
          , {"2003",  new Double( 15),  new Double( 15),  new Double( 15)}
          , {"2003",  new Double(  0),  new Double( 20),  new Double( 20)}
          , {"2003",  new Double( 15),  new Double( 25),  new Double( 25)}
          , {"2003",  new Double( 30),  new Double(-30),  new Double( 30)}
          , {"2003",  new Double( 35),  new Double( 35),  new Double( 35)}
      };
      setDataVector(data, columnNames);
     }
     public Class getColumnClass(int column) {
      return columnClass[column];
     }
   }
}