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The Waikato Environment for Knowledge Analysis (WEKA), a machine
learning workbench. This version represents the developer version, the
"bleeding edge" of development, you could say. New functionality gets added
to this version.
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see " +
"can be used to specify the first, last or specific index " +
"of the label to use respectively.");
holderPanel.add(m_valueTextBox, BorderLayout.CENTER);
JPanel holder2 = new JPanel();
holder2.setLayout(new BorderLayout());
holder2.add(holderPanel, BorderLayout.NORTH);
add(holder2, BorderLayout.CENTER);
String existingClassVal = m_classValuePicker.getClassValue();
if (existingClassVal != null) {
m_valueTextBox.setText(existingClassVal);
}
}
private void setUpValueSelection(Instances format) {
if (format.classIndex() < 0 || format.classAttribute().isNumeric()) {
// cant do anything in this case
m_messageLabel.setText((format.classIndex() < 0) ?
"EROR: no class attribute set" : "ERROR: class is numeric");
return;
}
if (m_displayValNames == false) {
remove(m_messageLabel);
}
m_textBoxEntryMode = false;
if (format.classAttribute().numValues() == 0) {
// loader may not be able to give us the set of legal
// values for a nominal attribute until it has read
// the data (e.g. database loader or csv loader).
// In this case we'll use a text box and the user
// can enter the class value.
setupTextBoxSelection();
validate(); repaint();
return;
}
String existingClassVal = m_classValuePicker.getClassValue();
if (existingClassVal == null) {
existingClassVal = "";
}
int classValIndex = format.classAttribute().indexOfValue(existingClassVal);
// do we have a special (last, first or number)
if (existingClassVal.startsWith("/")) {
existingClassVal = existingClassVal.substring(1);
if (existingClassVal.equalsIgnoreCase("first")) {
classValIndex = 0;
} else if (existingClassVal.equalsIgnoreCase("last")) {
classValIndex = format.classAttribute().numValues() - 1;
} else {
// try and parse as a number
classValIndex = Integer.parseInt(existingClassVal);
classValIndex--;
}
}
if (classValIndex < 0) {
classValIndex = 0;
}
String [] attribValNames = new String [format.classAttribute().numValues()];
for (int i = 0; i < attribValNames.length; i++) {
attribValNames[i] = format.classAttribute().value(i);
}
m_ClassValueCombo.setModel(new DefaultComboBoxModel(attribValNames));
if (attribValNames.length > 0) {
// if (existingClassVal < attribValNames.length) {
m_ClassValueCombo.setSelectedIndex(classValIndex);
// }
}
if (m_displayValNames == false) {
add(m_holderP, BorderLayout.CENTER);
m_displayValNames = true;
}
validate(); repaint();
}
/**
* Set the bean to be edited
*
* @param object an Object value
*/
public void setObject(Object object) {
if (m_classValuePicker != (ClassValuePicker)object) {
// remove ourselves as a listener from the old ClassvaluePicker (if necessary)
/* if (m_classValuePicker != null) {
m_classValuePicker.removeDataFormatListener(this);
} */
m_classValuePicker = (ClassValuePicker)object;
// add ourselves as a data format listener
// m_classValuePicker.addDataFormatListener(this);
if (m_classValuePicker.getConnectedFormat() != null) {
setUpValueSelection(m_classValuePicker.getConnectedFormat());
}
m_backup = m_classValuePicker.getClassValue();
}
}
public void customizerClosing() {
// remove ourselves as a listener from the ClassValuePicker (if necessary)
// if (m_classValuePicker != null) {
// System.out.println("Customizer deregistering with class value picker");
// m_classValuePicker.removeDataFormatListener(this);
//}
m_classValuePicker.setClassValue(m_backup);
}
/* public void newDataFormat(DataSetEvent dse) {
if (dse.getDataSet() != null) {
setUpValueSelection(m_classValuePicker.getConnectedFormat());
} else {
setUpNoCustPossible();
}
} */
/**
* Add a property change listener
*
* @param pcl a PropertyChangeListener value
*/
public void addPropertyChangeListener(PropertyChangeListener pcl) {
m_pcSupport.addPropertyChangeListener(pcl);
}
/**
* Remove a property change listener
*
* @param pcl a PropertyChangeListener value
*/
public void removePropertyChangeListener(PropertyChangeListener pcl) {
m_pcSupport.removePropertyChangeListener(pcl);
}
@Override
public void setModifiedListener(ModifyListener l) {
m_modifyListener = l;
}
@Override
public void setParentWindow(Window parent) {
m_parent = parent;
}
}