/*
* CI1PopPropDialog.java
*
* Created on May 21, 2008, 2:28 PM
*/
package org.statcato.dialogs.stat.ci;
import org.statcato.*;
import org.statcato.spreadsheet.*;
import org.statcato.statistics.inferential.*;
import org.statcato.utils.HelperFunctions;
import java.util.*;
import javax.swing.*;
/**
* A dialog for creating confidence intervals for one population proportion,
* given the confidence level.
* Allows the user to specify the data values in a column or provide
* summary data.
*
* @author Margaret Yau
* @version %I%, %G%
* @see org.statcato.statistics.inferential.CIOnePopProp
* @since 1.0
*/
public class CI1PopPropDialog extends StatcatoDialog {
/** Creates new form CI1PopPropDialog */
public CI1PopPropDialog(java.awt.Frame parent, boolean modal,
Statcato mTab) {
super(parent, modal);
initComponents();
app = mTab;
ParentSpreadsheet = app.getSpreadsheet();
ButtonGroup group1 = new ButtonGroup();
group1.add(SampleRadioButton);
group1.add(SummaryRadioButton);
ParentSpreadsheet.populateComboBox(ColumnComboBox);
getRootPane().setDefaultButton(OKButton);
setHelpFile("stat-ci-1prop");
name = "Confidence Interval: One Population Proportion";
description = "For computing the confidence intervals for a population " +
"proportion in one population using normal approximation. ";
helpStrings.add("If you provide sample data, put sample values of " +
"at most two categories in a column in the datasheet. " +
"Select the Samples in column: radio button, and " +
"select the column name in the given drop-down menu.");
helpStrings.add("If individual sample data is not available, " +
"select the Summarized sample data radio button. " +
"Enter the number of trials and the number of events " +
"in the provided text boxes.");
helpStrings.add("Enter the confidence level (between 0 and 1) in the " +
"Confidence level: text box.");
}
/**
* Updates elements on the dialog so that they have the most
* current values. Called by {@link #setVisible} to make
* sure the dialog displays current values when made visible again.
*
* @see #setVisible(boolean)
*/
@Override
public void updateElements() {
updateComboBox(ColumnComboBox);
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
// //GEN-BEGIN:initComponents
private void initComponents() {
OKButton = new javax.swing.JButton();
CancelButton = new javax.swing.JButton();
jPanel1 = new javax.swing.JPanel();
ColumnComboBox = new javax.swing.JComboBox();
TrialsTextField = new javax.swing.JTextField();
SampleRadioButton = new javax.swing.JRadioButton();
TrialsLabel = new javax.swing.JLabel();
SummaryRadioButton = new javax.swing.JRadioButton();
EventsLabel = new javax.swing.JLabel();
EventsTextField = new javax.swing.JTextField();
jPanel2 = new javax.swing.JPanel();
ConfidenceTextField = new javax.swing.JTextField();
jLabel6 = new javax.swing.JLabel();
jLabel1 = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
setTitle("Confidence Interval: One Population Proportion");
OKButton.setText("OK");
OKButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
OKButtonActionPerformed(evt);
}
});
CancelButton.setText("Cancel");
CancelButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
CancelButtonActionPerformed(evt);
}
});
jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder("Inputs"));
TrialsTextField.setEnabled(false);
SampleRadioButton.setSelected(true);
SampleRadioButton.setText("Samples in column:");
SampleRadioButton.addChangeListener(new javax.swing.event.ChangeListener() {
public void stateChanged(javax.swing.event.ChangeEvent evt) {
SampleRadioButtonStateChanged(evt);
}
});
TrialsLabel.setText("Number of trials:");
TrialsLabel.setEnabled(false);
SummaryRadioButton.setText("Summarized sample data:");
SummaryRadioButton.addChangeListener(new javax.swing.event.ChangeListener() {
public void stateChanged(javax.swing.event.ChangeEvent evt) {
SummaryRadioButtonStateChanged(evt);
}
});
EventsLabel.setText("Number of events:");
EventsLabel.setEnabled(false);
EventsTextField.setEnabled(false);
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(9, 9, 9)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(EventsLabel)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(3, 3, 3)
.addComponent(TrialsLabel)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(TrialsTextField)
.addComponent(EventsTextField, javax.swing.GroupLayout.PREFERRED_SIZE, 106, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addComponent(SampleRadioButton)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, jPanel1Layout.createSequentialGroup()
.addGap(18, 18, 18)
.addComponent(ColumnComboBox, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addComponent(SummaryRadioButton, javax.swing.GroupLayout.Alignment.LEADING)))
.addContainerGap(99, Short.MAX_VALUE))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(SampleRadioButton)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(ColumnComboBox, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(10, 10, 10)
.addComponent(SummaryRadioButton)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(EventsLabel)
.addComponent(EventsTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(TrialsLabel)
.addComponent(TrialsTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(16, Short.MAX_VALUE))
);
jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder("Confidence"));
ConfidenceTextField.setText("0.95");
jLabel6.setText("Confidence level:");
jLabel1.setText("0 - 1.00 (e.g. 0.95)");
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel6)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(ConfidenceTextField, javax.swing.GroupLayout.PREFERRED_SIZE, 81, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jLabel1)
.addContainerGap(16, Short.MAX_VALUE))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addContainerGap()
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(ConfidenceTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel1)
.addComponent(jLabel6))
.addContainerGap())
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(91, 91, 91)
.addComponent(OKButton)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(CancelButton))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(10, Short.MAX_VALUE))
);
layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {CancelButton, OKButton});
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(30, 30, 30)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(OKButton)
.addComponent(CancelButton))
.addGap(20, 20, 20))
);
pack();
}// //GEN-END:initComponents
private void OKButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_OKButtonActionPerformed
app.compoundEdit = new DialogEdit("CI 1 proportion");
int events = 0, trials = 0;
double confidenceLevel;
String heading = "Confidence Interval - One population proportion:";
String text = "";
// get confidence level from dialog
try {
confidenceLevel = Double.parseDouble(ConfidenceTextField.getText());
} catch (NumberFormatException e) {
app.showErrorDialog("Enter a number between 0 and 1 for the confidence level.");
return;
}
if (confidenceLevel <= 0 || confidenceLevel >= 1) {
app.showErrorDialog("Enter a number between 0 and 1 for the confidence level.");
return;
}
heading += " confidence level = " + confidenceLevel;
// get input
if (SampleRadioButton.isSelected()) {
// get data for selected input column
String columnLabel = ColumnComboBox.getSelectedItem().toString();
if (columnLabel.equals("")) { // no input variable
app.showErrorDialog("Select the input column.");
return;
}
int column = ParentSpreadsheet.parseColumnNumber(columnLabel);
Vector StrColumnVector = ParentSpreadsheet.getColumn(column);
String cat1 = "", cat2 = ""; // two categories
int count1 = 0, count2 = 0; // number of events in each category
// find out the two categories present in the column
// error if more than two categories
for (int i = 0; i < StrColumnVector.size(); ++i) {
String s = StrColumnVector.elementAt(i).getContents().trim();
if (!s.equals("")) {
if (cat1.equals("")) { // first instance of category 1
cat1 = s;
count1++;
}
else if (s.equals(cat1)) { // non-first instance of category 1
count1++;
}
else if (cat2.equals("")) { // first instance of category 2
cat2 = s;
count2++;
}
else if (s.equals(cat2)) { // non-first instance of category 2
count2++;
}
else { // neither category 1 or 2
app.showErrorDialog("The input column contains more than two categories.");
return;
}
}
}
trials = count1 + count2;
if (trials == 0) { // empty column
app.showErrorDialog("The input column is empty.");
return;
}
events = count1;
text += "Input: " + columnLabel + "
";
text += "Event: " + cat1 + "
";
} else {
// get summary data
try {
events = Integer.parseInt(EventsTextField.getText());
trials = Integer.parseInt(TrialsTextField.getText());
} catch (NumberFormatException e) {
app.showErrorDialog("Invalid summary data.");
return;
}
if (events > trials) {
app.showErrorDialog("The number of events must not be" +
" greater than the number of trials.");
return;
}
text += "Input: Summary data" + "
";
}
double p = (double)events / trials;
if (trials * p < 5 || trials * (1-p) < 5)
text += "WARNING: The sample size is too small for normal approximation"
+ " to be valid.
";
ConfidenceInterval CI;
CI = new CIOnePopProp(confidenceLevel, trials, p, CIOnePopProp.NORMAL);
text += "
";
text += "Number of trials Number of Events " +
"Sample proportion Margin of Error " +
HelperFunctions.formatFloat(confidenceLevel * 100, 2) + "%CI " + trials + " " + events + " " +
HelperFunctions.formatFloat(p, 3) + " " +
HelperFunctions.formatFloat(CI.marginOfError(), 3) + " " +
CI.toString() + " ";
app.addLogParagraph(heading, text);
app.compoundEdit.end();
app.addCompoundEdit(app.compoundEdit);
setVisible(false);
}//GEN-LAST:event_OKButtonActionPerformed
private void CancelButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_CancelButtonActionPerformed
setVisible(false);
}//GEN-LAST:event_CancelButtonActionPerformed
private void SampleRadioButtonStateChanged(javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_SampleRadioButtonStateChanged
if (SampleRadioButton.isSelected()) {
ColumnComboBox.setEnabled(true);
} else {
ColumnComboBox.setEnabled(false);
}
}//GEN-LAST:event_SampleRadioButtonStateChanged
private void SummaryRadioButtonStateChanged(javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_SummaryRadioButtonStateChanged
if (SummaryRadioButton.isSelected()) {
EventsLabel.setEnabled(true);
EventsTextField.setEnabled(true);
TrialsLabel.setEnabled(true);
TrialsTextField.setEnabled(true);
} else {
EventsLabel.setEnabled(false);
EventsTextField.setEnabled(false);
TrialsLabel.setEnabled(false);
TrialsTextField.setEnabled(false);
}
}//GEN-LAST:event_SummaryRadioButtonStateChanged
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton CancelButton;
private javax.swing.JComboBox ColumnComboBox;
private javax.swing.JTextField ConfidenceTextField;
private javax.swing.JLabel EventsLabel;
private javax.swing.JTextField EventsTextField;
private javax.swing.JButton OKButton;
private javax.swing.JRadioButton SampleRadioButton;
private javax.swing.JRadioButton SummaryRadioButton;
private javax.swing.JLabel TrialsLabel;
private javax.swing.JTextField TrialsTextField;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel6;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
// End of variables declaration//GEN-END:variables
}
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