edu.uah.math.experiments
Class MarkovChainExperiment

java.lang.Object
  java.awt.Component
      java.awt.Container
          java.awt.Panel
              java.applet.Applet
                  javax.swing.JApplet
                      edu.uah.math.experiments.Experiment
                          edu.uah.math.experiments.MarkovChainExperiment

All Implemented Interfaces:

IExperiment, Pluginable, java.awt.event.ActionListener, java.awt.event.ItemListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.event.WindowListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible, javax.swing.event.ChangeListener, javax.swing.RootPaneContainer

public class MarkovChainExperiment
extends Experiment
implements java.io.Serializable

This class models a basic Markov chain with state space {0, 1, ..., n}. The number of states can be varied and the transition probabilites can be specified. The states are represented by balls, and the current state is colored red. The initial state can be specified by clicking on a ball when the time is 0. The graph and table show the proportion of time spent in each state. As time increases, these proportions converge to the steady-state probabilities of the chain.

Version:

August, 2003

Author:

Dawn Duehring, Kyle Siegrist

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JApplet

javax.swing.JApplet.AccessibleJApplet

Nested classes/interfaces inherited from class java.applet.Applet

java.applet.Applet.AccessibleApplet

Nested classes/interfaces inherited from class java.awt.Panel

java.awt.Panel.AccessibleAWTPanel

Nested classes/interfaces inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

Fields inherited from class edu.uah.math.experiments.Experiment

applet, componentPanel, GREEN, RED, showModelDistribution, stopChoice, stopCount, stopFreq, stopNow, time, timer, toolBars, toolIndex, updateCount, updateFreq

Fields inherited from class javax.swing.JApplet

accessibleContext, rootPane, rootPaneCheckingEnabled

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

MarkovChainExperiment()

Method Summary

void	actionPerformed(java.awt.event.ActionEvent e) This method handles the action event associated with the probability button.
void	doExperiment() This method defines the experiment.
java.lang.String	getAppletInfo() This method returns basic information about the applet, including copyright information, descriptive informaion, and instructions.
javax.swing.JTable	getResultTable()
void	init() This method initialize the experiment, including the toolbar, record table, Markov chain, histogram, and data table.
void	mouseClicked(java.awt.event.MouseEvent e) This method sets the initial state when the user clicks on a ball.
void	reset() This method resets the experiment, including the Markov chain, the record table the histogram and data table.
void	stateChanged(javax.swing.event.ChangeEvent e) This method handles the scrollbar events for changing the number of states.
void	step() This method performs the next step in the process.
void	update() This method updates the experiment, including the record table, Markov chain, histogram, and data table.

Methods inherited from class edu.uah.math.experiments.Experiment

addComponent, addComponent, addComponent, addTool, addToolBar, clearToolBars, format, getComponentPanel, getDisplayPane, getMainToolBar, getOnlineDescription, getStopChoice, getStopFreq, getTime, getTimer, getUpdateChoice, graphUpdate, initialize, itemStateChanged, mouseDragged, mouseEntered, mouseExited, mouseMoved, mousePressed, mouseReleased, pasteData, playnote, playnote, run, setApplet, setDecimalFormat, setShowModelDistribution, setStopChoice, setStopChoiceTipText, setStopFreq, setStopNow, stop, windowActivated, windowClosed, windowClosing, windowDeactivated, windowDeiconified, windowIconified, windowOpened

Methods inherited from class javax.swing.JApplet

addImpl, createRootPane, getAccessibleContext, getContentPane, getGlassPane, getGraphics, getJMenuBar, getLayeredPane, getRootPane, getTransferHandler, isRootPaneCheckingEnabled, paramString, remove, repaint, setContentPane, setGlassPane, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, setTransferHandler, update

Methods inherited from class java.applet.Applet

destroy, getAppletContext, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, getParameterInfo, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus, start

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface edu.ucla.stat.SOCR.core.Pluginable

getName

Constructor Detail

MarkovChainExperiment

public MarkovChainExperiment()

Method Detail

init

public void init()

This method initialize the experiment, including the toolbar, record table, Markov chain, histogram, and data table.

Overrides:

init in class Experiment

getAppletInfo

public java.lang.String getAppletInfo()

This method returns basic information about the applet, including copyright information, descriptive informaion, and instructions.

Specified by:

getAppletInfo in interface IExperiment

Overrides:

getAppletInfo in class Experiment

Returns:

applet information

stateChanged

public void stateChanged(javax.swing.event.ChangeEvent e)

This method handles the scrollbar events for changing the number of states.

Specified by:

stateChanged in interface javax.swing.event.ChangeListener

Overrides:

stateChanged in class Experiment

Parameters:

e - the change event

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent e)

This method handles the action event associated with the probability button. The transition probability dialog is diplayed.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

Overrides:

actionPerformed in class Experiment

Parameters:

e - the action event

mouseClicked

public void mouseClicked(java.awt.event.MouseEvent e)

This method sets the initial state when the user clicks on a ball.

Specified by:

mouseClicked in interface java.awt.event.MouseListener

Overrides:

mouseClicked in class Experiment

Parameters:

e - the mouse event

step

public void step()

This method performs the next step in the process. A note is played, depending on the state.

Specified by:

step in interface IExperiment

Overrides:

step in class Experiment

reset

public void reset()

This method resets the experiment, including the Markov chain, the record table the histogram and data table.

Specified by:

reset in interface IExperiment

Overrides:

reset in class Experiment

doExperiment

public void doExperiment()

This method defines the experiment. The Markov chain moves to the next state.

Specified by:

doExperiment in interface IExperiment

Overrides:

doExperiment in class Experiment

update

public void update()

This method updates the experiment, including the record table, Markov chain, histogram, and data table.

Specified by:

update in interface IExperiment

Overrides:

update in class Experiment

getResultTable

public javax.swing.JTable getResultTable()

Specified by:

getResultTable in interface IExperiment

Overrides:

getResultTable in class Experiment