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/*
* 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 .
*/
/*
* AttributeSummaryPanel.java
* Copyright (C) 1999-2012 University of Waikato, Hamilton, New Zealand
*
*/
package weka.gui;
import java.awt.BorderLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import weka.core.Attribute;
import weka.core.AttributeStats;
import weka.core.Instances;
import weka.core.Utils;
/**
* This panel displays summary statistics about an attribute: name, type
* number/% of missing/unique values, number of distinct values. For numeric
* attributes gives some other stats (mean/std dev), for nominal attributes
* gives counts for each attribute value.
*
* @author Len Trigg ([email protected])
* @version $Revision: 11073 $
*/
public class AttributeSummaryPanel extends JPanel {
/** for serialization */
static final long serialVersionUID = -5434987925737735880L;
/** Message shown when no instances have been loaded and no attribute set */
protected static final String NO_SOURCE = "None";
/** Displays the name of the relation */
protected JLabel m_AttributeNameLab = new JLabel(NO_SOURCE);
/** Displays the type of attribute */
protected JLabel m_AttributeTypeLab = new JLabel(NO_SOURCE);
/** Displays the number of missing values */
protected JLabel m_MissingLab = new JLabel(NO_SOURCE);
/** Displays the number of unique values */
protected JLabel m_UniqueLab = new JLabel(NO_SOURCE);
/** Displays the number of distinct values */
protected JLabel m_DistinctLab = new JLabel(NO_SOURCE);
/** Displays other stats in a table */
protected JTable m_StatsTable = new JTable() {
/** for serialization */
private static final long serialVersionUID = 7165142874670048578L;
/**
* returns always false, since it's just information for the user
*
* @param row the row
* @param column the column
* @return always false, i.e., the whole table is not editable
*/
@Override
public boolean isCellEditable(int row, int column) {
return false;
}
};
/** The instances we're playing with */
protected Instances m_Instances;
/** Cached stats on the attributes we've summarized so far */
protected AttributeStats[] m_AttributeStats;
/** Do all instances have the same weight */
protected boolean m_allEqualWeights = true;
/**
* Creates the instances panel with no initial instances.
*/
public AttributeSummaryPanel() {
JPanel simple = new JPanel();
GridBagLayout gbL = new GridBagLayout();
simple.setLayout(gbL);
JLabel lab = new JLabel("Name:", SwingConstants.RIGHT);
lab.setBorder(BorderFactory.createEmptyBorder(0, 10, 0, 0));
GridBagConstraints gbC = new GridBagConstraints();
gbC.anchor = GridBagConstraints.EAST;
gbC.fill = GridBagConstraints.HORIZONTAL;
gbC.gridy = 0;
gbC.gridx = 0;
gbL.setConstraints(lab, gbC);
simple.add(lab);
gbC = new GridBagConstraints();
gbC.anchor = GridBagConstraints.WEST;
gbC.fill = GridBagConstraints.HORIZONTAL;
gbC.gridy = 0;
gbC.gridx = 1;
gbC.weightx = 100;
gbC.gridwidth = 3;
gbL.setConstraints(m_AttributeNameLab, gbC);
simple.add(m_AttributeNameLab);
m_AttributeNameLab.setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 10));
lab = new JLabel("Type:", SwingConstants.RIGHT);
lab.setBorder(BorderFactory.createEmptyBorder(0, 10, 0, 0));
gbC = new GridBagConstraints();
gbC.anchor = GridBagConstraints.EAST;
gbC.fill = GridBagConstraints.HORIZONTAL;
gbC.gridy = 0;
gbC.gridx = 4;
gbL.setConstraints(lab, gbC);
simple.add(lab);
gbC = new GridBagConstraints();
gbC.anchor = GridBagConstraints.WEST;
gbC.fill = GridBagConstraints.HORIZONTAL;
gbC.gridy = 0;
gbC.gridx = 5;
gbC.weightx = 100;
gbL.setConstraints(m_AttributeTypeLab, gbC);
simple.add(m_AttributeTypeLab);
m_AttributeTypeLab.setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 10));
// Put into a separate panel?
lab = new JLabel("Missing:", SwingConstants.RIGHT);
lab.setBorder(BorderFactory.createEmptyBorder(0, 10, 5, 0));
gbC = new GridBagConstraints();
gbC.anchor = GridBagConstraints.EAST;
gbC.fill = GridBagConstraints.HORIZONTAL;
gbC.gridy = 1;
gbC.gridx = 0;
gbL.setConstraints(lab, gbC);
simple.add(lab);
gbC = new GridBagConstraints();
gbC.anchor = GridBagConstraints.WEST;
gbC.fill = GridBagConstraints.HORIZONTAL;
gbC.gridy = 1;
gbC.gridx = 1;
gbC.weightx = 100;
gbL.setConstraints(m_MissingLab, gbC);
simple.add(m_MissingLab);
m_MissingLab.setBorder(BorderFactory.createEmptyBorder(0, 5, 5, 10));
lab = new JLabel("Distinct:", SwingConstants.RIGHT);
lab.setBorder(BorderFactory.createEmptyBorder(0, 10, 5, 0));
gbC = new GridBagConstraints();
gbC.anchor = GridBagConstraints.EAST;
gbC.fill = GridBagConstraints.HORIZONTAL;
gbC.gridy = 1;
gbC.gridx = 2;
gbL.setConstraints(lab, gbC);
simple.add(lab);
gbC = new GridBagConstraints();
gbC.anchor = GridBagConstraints.WEST;
gbC.fill = GridBagConstraints.HORIZONTAL;
gbC.gridy = 1;
gbC.gridx = 3;
gbC.weightx = 100;
gbL.setConstraints(m_DistinctLab, gbC);
simple.add(m_DistinctLab);
m_DistinctLab.setBorder(BorderFactory.createEmptyBorder(0, 5, 5, 10));
lab = new JLabel("Unique:", SwingConstants.RIGHT);
lab.setBorder(BorderFactory.createEmptyBorder(0, 10, 5, 0));
gbC = new GridBagConstraints();
gbC.anchor = GridBagConstraints.EAST;
gbC.fill = GridBagConstraints.HORIZONTAL;
gbC.gridy = 1;
gbC.gridx = 4;
gbL.setConstraints(lab, gbC);
simple.add(lab);
gbC = new GridBagConstraints();
gbC.anchor = GridBagConstraints.WEST;
gbC.fill = GridBagConstraints.HORIZONTAL;
gbC.gridy = 1;
gbC.gridx = 5;
gbC.weightx = 100;
gbL.setConstraints(m_UniqueLab, gbC);
simple.add(m_UniqueLab);
m_UniqueLab.setBorder(BorderFactory.createEmptyBorder(0, 5, 5, 10));
setLayout(new BorderLayout());
add(simple, BorderLayout.NORTH);
add(new JScrollPane(m_StatsTable), BorderLayout.CENTER);
m_StatsTable.getSelectionModel().setSelectionMode(
ListSelectionModel.SINGLE_SELECTION);
}
/**
* Tells the panel to use a new set of instances.
*
* @param inst a set of Instances
*/
public void setInstances(Instances inst) {
m_Instances = inst;
m_AttributeStats = new AttributeStats[inst.numAttributes()];
m_AttributeNameLab.setText(NO_SOURCE);
m_AttributeTypeLab.setText(NO_SOURCE);
m_MissingLab.setText(NO_SOURCE);
m_UniqueLab.setText(NO_SOURCE);
m_DistinctLab.setText(NO_SOURCE);
m_StatsTable.setModel(new DefaultTableModel());
m_allEqualWeights = true;
if (m_Instances.numInstances() == 0) {
return;
}
double w = m_Instances.instance(0).weight();
for (int i = 1; i < m_Instances.numInstances(); i++) {
if (m_Instances.instance(i).weight() != w) {
m_allEqualWeights = false;
break;
}
}
}
/**
* Sets the attribute that statistics will be displayed for.
*
* @param index the index of the attribute to display
*/
public void setAttribute(final int index) {
setHeader(index);
if (m_AttributeStats[index] == null) {
Thread t = new Thread() {
@Override
public void run() {
m_AttributeStats[index] = m_Instances.attributeStats(index);
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
setDerived(index);
m_StatsTable.sizeColumnsToFit(-1);
m_StatsTable.revalidate();
m_StatsTable.repaint();
}
});
}
};
t.setPriority(Thread.MIN_PRIORITY);
t.start();
} else {
setDerived(index);
}
}
/**
* Sets the gui elements for fields that are stored in the AttributeStats
* structure.
*
* @param index the index of the attribute
*/
protected void setDerived(int index) {
AttributeStats as = m_AttributeStats[index];
long percent = Math.round(100.0 * as.missingCount / as.totalCount);
m_MissingLab.setText("" + as.missingCount + " (" + percent + "%)");
percent = Math.round(100.0 * as.uniqueCount / as.totalCount);
m_UniqueLab.setText("" + as.uniqueCount + " (" + percent + "%)");
m_DistinctLab.setText("" + as.distinctCount);
setTable(as, index);
}
/**
* Creates a tablemodel for the attribute being displayed
*
* @param as the attribute statistics
* @param index the index of the attribute
*/
protected void setTable(AttributeStats as, int index) {
if (as.nominalCounts != null) {
Attribute att = m_Instances.attribute(index);
Object[] colNames = { "No.", "Label", "Count", "Weight" };
Object[][] data = new Object[as.nominalCounts.length][4];
for (int i = 0; i < as.nominalCounts.length; i++) {
data[i][0] = new Integer(i + 1);
data[i][1] = att.value(i);
data[i][2] = new Integer(as.nominalCounts[i]);
data[i][3] = new Double(Utils.doubleToString(as.nominalWeights[i], 3));
}
m_StatsTable.setModel(new DefaultTableModel(data, colNames));
m_StatsTable.getColumnModel().getColumn(0).setMaxWidth(60);
DefaultTableCellRenderer tempR = new DefaultTableCellRenderer();
tempR.setHorizontalAlignment(JLabel.RIGHT);
m_StatsTable.getColumnModel().getColumn(0).setCellRenderer(tempR);
} else if (as.numericStats != null) {
Object[] colNames = { "Statistic", "Value" };
Object[][] data = new Object[4][2];
data[0][0] = "Minimum";
data[0][1] = Utils.doubleToString(as.numericStats.min, 3);
data[1][0] = "Maximum";
data[1][1] = Utils.doubleToString(as.numericStats.max, 3);
data[2][0] = "Mean" + ((!m_allEqualWeights) ? " (weighted)" : "");
data[2][1] = Utils.doubleToString(as.numericStats.mean, 3);
data[3][0] = "StdDev" + ((!m_allEqualWeights) ? " (weighted)" : "");
data[3][1] = Utils.doubleToString(as.numericStats.stdDev, 3);
m_StatsTable.setModel(new DefaultTableModel(data, colNames));
} else {
m_StatsTable.setModel(new DefaultTableModel());
}
m_StatsTable.getColumnModel().setColumnMargin(4);
}
/**
* Sets the labels for fields we can determine just from the instance header.
*
* @param index the index of the attribute
*/
protected void setHeader(int index) {
Attribute att = m_Instances.attribute(index);
m_AttributeNameLab.setText(att.name());
switch (att.type()) {
case Attribute.NOMINAL:
m_AttributeTypeLab.setText("Nominal");
break;
case Attribute.NUMERIC:
m_AttributeTypeLab.setText("Numeric");
break;
case Attribute.STRING:
m_AttributeTypeLab.setText("String");
break;
case Attribute.DATE:
m_AttributeTypeLab.setText("Date");
break;
case Attribute.RELATIONAL:
m_AttributeTypeLab.setText("Relational");
break;
default:
m_AttributeTypeLab.setText("Unknown");
break;
}
m_MissingLab.setText("...");
m_UniqueLab.setText("...");
m_DistinctLab.setText("...");
}
/**
* Tests out the attribute summary panel from the command line.
*
* @param args optional name of dataset to load
*/
public static void main(String[] args) {
try {
final javax.swing.JFrame jf = new javax.swing.JFrame("Attribute Panel");
jf.getContentPane().setLayout(new BorderLayout());
final AttributeSummaryPanel p = new AttributeSummaryPanel();
p.setBorder(BorderFactory.createTitledBorder("Attribute"));
jf.getContentPane().add(p, BorderLayout.CENTER);
final javax.swing.JComboBox j = new javax.swing.JComboBox();
j.setEnabled(false);
j.addActionListener(new java.awt.event.ActionListener() {
@Override
public void actionPerformed(java.awt.event.ActionEvent e) {
p.setAttribute(j.getSelectedIndex());
}
});
jf.getContentPane().add(j, BorderLayout.NORTH);
jf.addWindowListener(new java.awt.event.WindowAdapter() {
@Override
public void windowClosing(java.awt.event.WindowEvent e) {
jf.dispose();
System.exit(0);
}
});
jf.pack();
jf.setVisible(true);
if (args.length == 1) {
java.io.Reader r = new java.io.BufferedReader(new java.io.FileReader(
args[0]));
Instances inst = new Instances(r);
p.setInstances(inst);
p.setAttribute(0);
String[] names = new String[inst.numAttributes()];
for (int i = 0; i < names.length; i++) {
names[i] = inst.attribute(i).name();
}
j.setModel(new javax.swing.DefaultComboBoxModel(names));
j.setEnabled(true);
}
} catch (Exception ex) {
ex.printStackTrace();
System.err.println(ex.getMessage());
}
}
}
