public String[] getAxisLabels() {
   if (model.getRowCount() > 1) {
     int count = model.getRowCount() - 1;
     String[] labels = new String[count];
     for (int idx = 0; idx < count; idx++) {
       labels[idx] = (String) model.getValueAt(idx, 0);
     }
     return labels;
   }
   // API expects null, not empty array
   return null;
 }
 /**
  * We use this method to get the data, since we are using ObjectTableModel, so the calling
  * getDataVector doesn't work as expected.
  *
  * @return the data from the model
  */
 public List<List<Object>> getAllTableData() {
   List<List<Object>> data = new ArrayList<List<Object>>();
   if (model.getRowCount() > 0) {
     for (int rw = 0; rw < model.getRowCount(); rw++) {
       int cols = model.getColumnCount();
       List<Object> column = new ArrayList<Object>();
       data.add(column);
       for (int idx = 0; idx < cols; idx++) {
         Object val = model.getValueAt(rw, idx);
         column.add(val);
       }
     }
   }
   return data;
 }
 /**
  * We use this method to get the data, since we are using ObjectTableModel, so the calling
  * getDataVector doesn't work as expected.
  *
  * @param model {@link ObjectTableModel}
  * @param formats Array of {@link Format} array can contain null formatters in this case value is
  *     added as is
  * @return the data from the model
  */
 public static List<List<Object>> getAllTableData(ObjectTableModel model, Format[] formats) {
   List<List<Object>> data = new ArrayList<List<Object>>();
   if (model.getRowCount() > 0) {
     for (int rw = 0; rw < model.getRowCount(); rw++) {
       int cols = model.getColumnCount();
       List<Object> column = new ArrayList<Object>();
       data.add(column);
       for (int idx = 0; idx < cols; idx++) {
         Object val = model.getValueAt(rw, idx);
         if (formats[idx] != null) {
           column.add(formats[idx].format(val));
         } else {
           column.add(val);
         }
       }
     }
   }
   return data;
 }
 private void actionMakeGraph() {
   if (model.getRowCount() > 1) {
     makeGraph();
     tabbedGraph.setSelectedIndex(1);
   } else {
     JOptionPane.showMessageDialog(
         null,
         JMeterUtils.getResString("aggregate_graph_no_values_to_graph"), // $NON-NLS-1$
         JMeterUtils.getResString("aggregate_graph_no_values_to_graph"), // $NON-NLS-1$
         JOptionPane.WARNING_MESSAGE);
   }
 }
  public double[][] getData() {
    if (model.getRowCount() > 1) {
      int count = model.getRowCount() - 1;

      int size = nbColToGraph;
      double[][] data = new double[size][count];
      int s = 0;
      int cpt = 0;
      for (BarGraph bar : eltList) {
        if (bar.getChkBox().isSelected()) {
          int col = model.findColumn((String) columnsList.getItemAt(cpt));
          for (int idx = 0; idx < count; idx++) {
            data[s][idx] = ((Number) model.getValueAt(idx, col)).doubleValue();
          }
          s++;
        }
        cpt++;
      }
      return data;
    }
    // API expects null, not empty array
    return null;
  }