math.statistics

Class Variance

java.lang.Object

org.trianacode.taskgraph.Unit

math.statistics.Variance

public class Variance
extends Unit

A Variance unit to compute variance, sample variance, standard deviation or sample standard deviation of any data set. "Sample" values differ from ordinary ones by normalization: divide by n-1 instead of n. For complex data the variance is computed using the magnitudes of the data points.

Field Summary

Fields inherited from class org.trianacode.taskgraph.Unit

CLONE_ALL_OUTPUT, CLONE_MULTIPLE_OUTPUT, COPY_OUTPUT, ESSENTIAL, ESSENTIAL_IF_CONNECTED, IMMEDIATE_UPDATE, INTERNAL, LATE_INITIALIZE, NO_UPDATE, ON_TASK_INSTANTATION, ON_USER_ACCESS, OPTIONAL, PROCESS_UPDATE, TRANSIENT, TRANSIENT_ACCESSIBLE, USER_ACCESSIBLE

Constructor Summary

Constructors

Constructor and Description
Variance()

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	getHelpFile()
java.lang.String[]	getInputTypes() This method should return an array of the data types accepted by nodes not specified in getNodeInputTypes (e.g.
java.lang.String[]	getOutputTypes() This method should return an array of the data types output by nodes not specified in getNodeOutputTypes() (e.g.
java.lang.String	getPopUpDescription() This returns a brief! description of what the unit does.
void	init() Initialses information specific to Variance.
void	parameterUpdate(java.lang.String name, java.lang.Object value) Used to set each of Variance's parameters.
void	process() ********************************************* ** USER CODE of Variance goes here *** *********************************************
void	reset() Called when the reset button is pressed within the MainTriana Window
void	stopping() Called when the stop button is pressed within the MainTriana Window
void	updateWidgetFor(java.lang.String name) Don't need to use this for GUI Builder units as everthing is updated by triana automatically

Methods inherited from class org.trianacode.taskgraph.Unit

debug, debug, defineParameter, dispose, extractClipInState, getClipIn, getClipIn, getControlInterface, getDefaultInputNodes, getDefaultNodeRequirement, getDefaultOutputNodes, getDisplayName, getDisplayPackage, getGUIBuilderV2Info, getHelpFileLocation, getInputAtNode, getInputNodeCount, getMaximumInputNodes, getMaximumOutputNodes, getMinimumInputNodes, getMinimumOutputNodes, getNodeInputTypes, getNodeOutputTypes, getOutputNodeCount, getOutputPolicy, getPackageName, getParameter, getParameterPanelClass, getParameterPanelInstantiate, getParameterType, getParameterUpdatePolicy, getRunnableInterface, getTask, getTaskGraphContext, getToolName, getToolPackage, getToolTable, getVersion, hideParameterPanel, isClipInName, isInputAtNode, isOutputSent, isParameter, log, log, notifyError, notifyError, output, outputAtNode, outputAtNode, parameterUpdated, putClipIn, removeClipIn, removeParameter, restoreClipInState, setDefaultInputNodes, setDefaultNodeRequirement, setDefaultOutputNodes, setDisplayName, setDisplayPackage, setGUIBuilderV2Info, setHelpFileLocation, setMaximumInputNodes, setMaximumOutputNodes, setMinimumInputNodes, setMinimumOutputNodes, setOutputPolicy, setParameter, setParameterPanelClass, setParameterPanelInstantiate, setParameterUpdatePolicy, setPopUpDescription, setRunnableInterface, setToolName, setToolPackage, setVersion, showParameterPanel

Methods inherited from class java.lang.Object

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

Constructor Detail

Variance

public Variance()

Method Detail

process

public void process()
             throws java.lang.Exception

********************************************* ** USER CODE of Variance goes here *** *********************************************

Specified by:

process in class Unit

Throws:

java.lang.Exception

init

public void init()

Initialses information specific to Variance.

Overrides:

init in class Unit

reset

public void reset()

Called when the reset button is pressed within the MainTriana Window

Overrides:

reset in class Unit

stopping

public void stopping()

Called when the stop button is pressed within the MainTriana Window

Overrides:

stopping in class Unit

parameterUpdate

public void parameterUpdate(java.lang.String name,
                   java.lang.Object value)

Used to set each of Variance's parameters.

Overrides:

parameterUpdate in class Unit

updateWidgetFor

public void updateWidgetFor(java.lang.String name)

Don't need to use this for GUI Builder units as everthing is updated by triana automatically

getInputTypes

public java.lang.String[] getInputTypes()

Description copied from class: Unit

This method should return an array of the data types accepted by nodes not specified in getNodeInputTypes (e.g. triana.types.VectorType). If no package is specified then triana.types is assumed.

Specified by:

getInputTypes in class Unit

Returns:

a string containing the names of the types allowed to be input to Variance, each separated by a white space.

getOutputTypes

public java.lang.String[] getOutputTypes()

Description copied from class: Unit

This method should return an array of the data types output by nodes not specified in getNodeOutputTypes() (e.g. triana.types.VectorType). If no package is specified then triana.types is assumed.

Specified by:

getOutputTypes in class Unit

Returns:

an array of the output types for this unit

getPopUpDescription

public java.lang.String getPopUpDescription()

This returns a brief! description of what the unit does. The text here is shown in a pop up window when the user puts the mouse over the unit icon for more than a second.

Overrides:

getPopUpDescription in class Unit

getHelpFile

public java.lang.String getHelpFile()