/** deletes the chosen attributes */
public void deleteAttributes() {
ListSelectorDialog dialog;
ArffSortedTableModel model;
Object[] atts;
int[] indices;
int i;
JList list;
int result;
list = new JList(getAttributes());
dialog = new ListSelectorDialog(null, list);
result = dialog.showDialog();
if (result != ListSelectorDialog.APPROVE_OPTION) return;
atts = list.getSelectedValues();
// really?
if (ComponentHelper.showMessageBox(
getParent(),
"Confirm...",
"Do you really want to delete these " + atts.length + " attributes?",
JOptionPane.YES_NO_OPTION,
JOptionPane.QUESTION_MESSAGE)
!= JOptionPane.YES_OPTION) return;
model = (ArffSortedTableModel) m_TableArff.getModel();
indices = new int[atts.length];
for (i = 0; i < atts.length; i++) indices[i] = model.getAttributeColumn(atts[i].toString());
setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
model.deleteAttributes(indices);
setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
}
/**
* Returns a panel to be displayed with the AboutAction.
*
* @return the panel with some information on the scripting panel
*/
protected JPanel getAboutPanel() {
JPanel result;
JPanel panel;
result = new JPanel(new BorderLayout());
result.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
// image
result.add(
new JLabel(ComponentHelper.getImageIcon(IMAGES_DIR + "/jython_medium.png")),
BorderLayout.CENTER);
// links
panel = new JPanel(new GridLayout(5, 1));
panel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
result.add(panel, BorderLayout.SOUTH);
panel.add(new JLabel("Jython homepage"));
panel.add(BrowserHelper.createLink("http://www.jython.org/", null));
panel.add(new JLabel(" "));
panel.add(new JLabel("Weka and Jython"));
panel.add(BrowserHelper.createLink("http://weka.wikispaces.com/Using+Weka+from+Jython", null));
return result;
}
/** deletes the currently selected attribute */
public void deleteAttribute() {
ArffSortedTableModel model;
// no column selected?
if (m_CurrentCol == -1) return;
model = (ArffSortedTableModel) m_TableArff.getModel();
// really an attribute column?
if (model.getAttributeAt(m_CurrentCol) == null) return;
// really?
if (ComponentHelper.showMessageBox(
getParent(),
"Confirm...",
"Do you really want to delete the attribute '"
+ model.getAttributeAt(m_CurrentCol).name()
+ "'?",
JOptionPane.YES_NO_OPTION,
JOptionPane.QUESTION_MESSAGE)
!= JOptionPane.YES_OPTION) return;
setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
model.deleteAttributeAt(m_CurrentCol);
setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
}
/** calculates the mean of the given numeric column */
private void calcMean() {
ArffSortedTableModel model;
int i;
double mean;
// no column selected?
if (m_CurrentCol == -1) return;
model = (ArffSortedTableModel) m_TableArff.getModel();
// not numeric?
if (!model.getAttributeAt(m_CurrentCol).isNumeric()) return;
mean = 0;
for (i = 0; i < model.getRowCount(); i++)
mean += model.getInstances().instance(i).value(m_CurrentCol - 1);
mean = mean / model.getRowCount();
// show result
ComponentHelper.showMessageBox(
getParent(),
"Mean for attribute...",
"Mean for attribute '"
+ m_TableArff.getPlainColumnName(m_CurrentCol)
+ "':\n\t"
+ Utils.doubleToString(mean, 3),
JOptionPane.OK_CANCEL_OPTION,
JOptionPane.PLAIN_MESSAGE);
}
/** searches for a string in the cells */
public void search() {
String searchString;
// display dialog
searchString =
ComponentHelper.showInputBox(
getParent(), "Search...", "Enter the string to search for", m_LastSearch);
if (searchString != null) m_LastSearch = searchString;
getTable().setSearchString(searchString);
}
/** renames the current attribute */
public void renameAttribute() {
ArffSortedTableModel model;
String newName;
// no column selected?
if (m_CurrentCol == -1) return;
model = (ArffSortedTableModel) m_TableArff.getModel();
// really an attribute column?
if (model.getAttributeAt(m_CurrentCol) == null) return;
newName =
ComponentHelper.showInputBox(
getParent(),
"Rename attribute...",
"Enter new Attribute name",
model.getAttributeAt(m_CurrentCol).name());
if (newName == null) return;
setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
model.renameAttributeAt(m_CurrentCol, newName);
setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
}
/**
* Returns an icon to be used in a frame.
*
* @return the icon
*/
public ImageIcon getIcon() {
return ComponentHelper.getImageIcon(IMAGES_DIR + "/jython_small.png");
}
/**
* sets the specified values in a column to a new value
*
* @param o the menu item
*/
private void setValues(Object o) {
String msg;
String title;
String value;
String valueNew;
int i;
ArffSortedTableModel model;
value = "";
valueNew = "";
if (o == menuItemSetMissingValues) {
title = "Replace missing values...";
msg = "New value for MISSING values";
} else if (o == menuItemSetAllValues) {
title = "Set all values...";
msg = "New value for ALL values";
} else if (o == menuItemReplaceValues) {
title = "Replace values...";
msg = "Old value";
} else return;
value = ComponentHelper.showInputBox(m_TableArff.getParent(), title, msg, m_LastSearch);
// cancelled?
if (value == null) return;
m_LastSearch = value;
// replacement
if (o == menuItemReplaceValues) {
valueNew =
ComponentHelper.showInputBox(m_TableArff.getParent(), title, "New value", m_LastReplace);
if (valueNew == null) return;
m_LastReplace = valueNew;
}
model = (ArffSortedTableModel) m_TableArff.getModel();
model.setNotificationEnabled(false);
// undo
addUndoPoint();
model.setUndoEnabled(false);
String valueCopy = value;
// set value
for (i = 0; i < m_TableArff.getRowCount(); i++) {
if (o == menuItemSetAllValues) {
if (valueCopy.equals("NaN") || valueCopy.equals("?")) {
value = null;
}
model.setValueAt(value, i, m_CurrentCol);
} else if ((o == menuItemSetMissingValues) && model.isMissingAt(i, m_CurrentCol))
model.setValueAt(value, i, m_CurrentCol);
else if ((o == menuItemReplaceValues)
&& model.getValueAt(i, m_CurrentCol).toString().equals(value))
model.setValueAt(valueNew, i, m_CurrentCol);
}
model.setUndoEnabled(true);
model.setNotificationEnabled(true);
model.notifyListener(
new TableModelEvent(model, 0, model.getRowCount(), m_CurrentCol, TableModelEvent.UPDATE));
// refresh
m_TableArff.repaint();
}
