de.gsi.math.functions

Class AbstractFunction

java.lang.Object

de.gsi.math.functions.AbstractFunction

All Implemented Interfaces:

Function

Direct Known Subclasses:

AbstractFunction1D, AbstractFunctionND, EllipseFunction

public abstract class AbstractFunction
extends Object
implements Function

abstract class implementing a global function list and local function change listener interface

Author:

rstein

Field Summary

Fields

Modifier and Type	Field and Description
protected double[]	fparameter
protected double[]	fparameterCopy
protected boolean[]	fparameterFixed
protected double[]	fparameterMax
protected double[]	fparameterMin
protected String[]	fparameterName
protected boolean	isFitterMode

Constructor Summary

Constructors

Constructor and Description
AbstractFunction(String name, double[] parameter)
AbstractFunction(String name, double[] parameters, String[] parameterNames)
AbstractFunction(String name, int nparm)

Method Summary

Modifier and Type	Method and Description
void	addFunction(Function object) add object to global function list
void	addListener(UpdateListener object) add object to update listener list
void	clearParameterValues() resets all parameter values to zero
void	fixParameter(int id, boolean state) sets
int	getFreeParameterCount()
Function[]	getFunctions()
String	getID()
String	getName()
int	getParameterCount()
String	getParameterName(int id)
double	getParameterRangeMaximum(int id)
double	getParameterRangeMinimum(int id)
double	getParameterValue(int id)
double[]	getParameterValues() a convenience method to return all parameter values
void	invokeListener() invoke object within update listener list
boolean	isFitterMode() returns whether function is in use by fitting routine <expert function>
boolean	isParameterFixed(int id) returns whether given parameter is fixed (static) or not
void	printParameters()
void	printParameters(boolean fullDebug)
void	removeFunction(Function object) remove object to global function list
void	removeListener(UpdateListener object) remove object to update listener list
void	setFitterMode(boolean state) sets whether function is in use by fitting routine <expert function>
void	setParameterCount(int count)
void	setParameterName(int id, String paramName) sets the name of a by 'id' given parameter
void	setParameterRange(int id, double minRange, double maxRange) sets the range of a by 'id' given parameter N.B.
void	setParameterValue(int id, double value) sets the value of a by 'id' given parameter
void	setParameterValues(double[] value) sets the parameter values using an array the array is required to have at most getParameterCount() indices

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.gsi.math.functions.Function

getInputDimension, getOutputDimension

Field Detail

fparameter

protected double[] fparameter

fparameterMin

protected double[] fparameterMin

fparameterMax

protected double[] fparameterMax

fparameterCopy

protected double[] fparameterCopy

fparameterFixed

protected boolean[] fparameterFixed

fparameterName

protected String[] fparameterName

isFitterMode

protected boolean isFitterMode

Constructor Detail

AbstractFunction

public AbstractFunction(String name,
                        double[] parameter)

Parameters:

name - function name

parameter - parameter vector

AbstractFunction

public AbstractFunction(String name,
                        double[] parameters,
                        String[] parameterNames)

Parameters:

name - function name

parameters - parameter array

parameterNames - parameter name array

AbstractFunction

public AbstractFunction(String name,
                        int nparm)

Parameters:

name - function name

nparm - number of free parameter

Method Detail

addFunction

public void addFunction(Function object)

add object to global function list

Parameters:

object - function to be added

addListener

public void addListener(UpdateListener object)

add object to update listener list

Parameters:

object - update listener to be added

clearParameterValues

public void clearParameterValues()

Description copied from interface: Function

resets all parameter values to zero

Specified by:

clearParameterValues in interface Function

fixParameter

public void fixParameter(int id,
                         boolean state)

Description copied from interface: Function

sets

Specified by:

fixParameter in interface Function

Parameters:

id - the parameter id

state - true: parameter is fixed, false: parameter is free

getFreeParameterCount

public int getFreeParameterCount()

Specified by:

getFreeParameterCount in interface Function

Returns:

the number of free parameter

getFunctions

public Function[] getFunctions()

Returns:

all registered functions

getID

public String getID()

Specified by:

getID in interface Function

Returns:

unique function ID

getName

public String getName()

Specified by:

getName in interface Function

Returns:

function name (e.g. brief description/Latex notation)

getParameterCount

public int getParameterCount()

Specified by:

getParameterCount in interface Function

Returns:

the number of parameter

getParameterName

public String getParameterName(int id)

Specified by:

getParameterName in interface Function

Parameters:

id - the parameter id

Returns:

the name of a by 'id' given parameter

getParameterRangeMaximum

public double getParameterRangeMaximum(int id)

Specified by:

getParameterRangeMaximum in interface Function

Parameters:

id - the parameter id

Returns:

the maximum value of a by 'id' given parameter range N.B. depending on the fitter, the range may be used only as a hint

getParameterRangeMinimum

public double getParameterRangeMinimum(int id)

Specified by:

getParameterRangeMinimum in interface Function

Parameters:

id - the parameter id

Returns:

the minimum value of a by 'id' given parameter range N.B. depending on the fitter, the range may be used only as a hint

getParameterValue

public double getParameterValue(int id)

Specified by:

getParameterValue in interface Function

Parameters:

id - parameter id

Returns:

the value of a by 'id' given parameter

getParameterValues

public double[] getParameterValues()

a convenience method to return all parameter values

Returns:

get array with parameter values

invokeListener

public void invokeListener()

invoke object within update listener list

isFitterMode

public boolean isFitterMode()

Description copied from interface: Function

returns whether function is in use by fitting routine <expert function>

Specified by:

isFitterMode in interface Function

Returns:

true: function is used within a fitting routine

isParameterFixed

public boolean isParameterFixed(int id)

Description copied from interface: Function

returns whether given parameter is fixed (static) or not

Specified by:

isParameterFixed in interface Function

Parameters:

id - parameter id

Returns:

true: if parameter is fixed

printParameters

public void printParameters()

printParameters

public void printParameters(boolean fullDebug)

removeFunction

public void removeFunction(Function object)

remove object to global function list

Parameters:

object - function to be removed

removeListener

public void removeListener(UpdateListener object)

remove object to update listener list

Parameters:

object - update listener to be removed

setFitterMode

public void setFitterMode(boolean state)

Description copied from interface: Function

sets whether function is in use by fitting routine <expert function>

Specified by:

setFitterMode in interface Function

Parameters:

state - true: function is used within a fitting routine

setParameterCount

public void setParameterCount(int count)

Specified by:

setParameterCount in interface Function

Parameters:

count - number of free parameter

setParameterName

public void setParameterName(int id,
                             String paramName)

Description copied from interface: Function

sets the name of a by 'id' given parameter

Specified by:

setParameterName in interface Function

Parameters:

id - the parameter id

paramName - name for the given pararameter 'id'

setParameterRange

public void setParameterRange(int id,
                              double minRange,
                              double maxRange)

Description copied from interface: Function

sets the range of a by 'id' given parameter N.B. depending on the fitter, the range may be used only as a hint

Specified by:

setParameterRange in interface Function

Parameters:

id - the parameter id

minRange - minimum parameter range

maxRange - maximum parameter range

setParameterValue

public void setParameterValue(int id,
                              double value)

Description copied from interface: Function

sets the value of a by 'id' given parameter

Specified by:

setParameterValue in interface Function

Parameters:

id - the parameter id

value - new value of parameter

setParameterValues

public void setParameterValues(double[] value)

Description copied from interface: Function

sets the parameter values using an array the array is required to have at most getParameterCount() indices

Specified by:

setParameterValues in interface Function

Parameters:

value - new parameter values