com.steema.teechart.functions
Class CurveFitting

java.lang.Object
  com.steema.teechart.TeeBase
      com.steema.teechart.functions.Function
          com.steema.teechart.functions.CurveFitting

All Implemented Interfaces:

java.io.Serializable

public class CurveFitting
extends Function

Title: CurveFitting class

Description: Base class for fitting function(s)

Copyright (c) 2005-2006-2006 by Steema Software SL. All Rights Reserved.

Company: Steema Software SL

See Also:

Serialized Form

Field Summary

Fields inherited from class com.steema.teechart.functions.Function

canUsePeriod, dPeriod, HideSourceList, noSourceRequired, series, SingleSource, updating

Fields inherited from class com.steema.teechart.TeeBase

chart

Constructor Summary

CurveFitting()

CurveFitting(IBaseChart c)

Method Summary

void	addPoints(java.util.ArrayList source) Gets all points from Source series, performs a function operation and stores results in ParentSeries.
double	coefficient(int index) Returns calculated fitted coefficient.
double	getCurveYValue(Series s, double x) Evaluate function using calculated coefficients.
java.lang.String	getDescription() Gets descriptive text.
int	getFactor() Multiplying factor.
int	getFirstCalcPoint() First point to be used in fitting.
int	getFirstPoint() First point to be used in evaluating.
int	getLastCalcPoint() Last point to be used in fitting.
int	getLastPoint() Last point to be used in evaluating.
int	getPolyDegree() Defines fitted polynomial degree.
protected java.lang.Object	readResolve()
void	setFactor(int value) Multiplying factor.
void	setFirstCalcPoint(int value) First point to be used in fitting.
void	setFirstPoint(int value) First point to be used in evaluating.
void	setLastCalcPoint(int value) Last point to be used in fitting.
void	setLastPoint(int value) Last point to be used in evaluating.
void	setPolyDegree(int value) Defines fitted polynomial degree.

Methods inherited from class com.steema.teechart.functions.Function

addFunctionXY, calculate, calculateAllPoints, calculateByPeriod, calculateMany, calculatePeriod, doCalculation, getPeriod, getPeriodAlign, getPeriodStyle, getSeries, newInstance, recalculate, setPeriod, setPeriodAlign, setPeriodStyle, setSeries, valueList

Methods inherited from class com.steema.teechart.TeeBase

getChart, invalidate, setBooleanProperty, setChart, setColorProperty, setColorProperty, setDoubleProperty, setIntegerProperty, setStringProperty

Methods inherited from class java.lang.Object

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

Constructor Detail

CurveFitting

public CurveFitting()

CurveFitting

public CurveFitting(IBaseChart c)

Method Detail

readResolve

protected java.lang.Object readResolve()

Overrides:

readResolve in class Function

getPolyDegree

public int getPolyDegree()

Defines fitted polynomial degree.
Default value: 5

Returns:

int

setPolyDegree

public void setPolyDegree(int value)

Defines fitted polynomial degree.
Default value: 5

Parameters:

value - int

getFactor

public int getFactor()

Multiplying factor.
Default value: 1

Returns:

int

setFactor

public void setFactor(int value)

Multiplying factor.
Default value: 1

Parameters:

value - int

getFirstCalcPoint

public int getFirstCalcPoint()

First point to be used in fitting.
Default value: -1

Returns:

int

setFirstCalcPoint

public void setFirstCalcPoint(int value)

First point to be used in fitting.
Default value: -1

Parameters:

value - int

getLastCalcPoint

public int getLastCalcPoint()

Last point to be used in fitting.
Default value: -1

Returns:

int

setLastCalcPoint

public void setLastCalcPoint(int value)

Last point to be used in fitting.
Default value: -1

Parameters:

value - int

getFirstPoint

public int getFirstPoint()

First point to be used in evaluating.
Default value: -1

Returns:

int

setFirstPoint

public void setFirstPoint(int value)

First point to be used in evaluating.
Default value: -1

Parameters:

value - int

getLastPoint

public int getLastPoint()

Last point to be used in evaluating.
Default value: -1

Returns:

int

setLastPoint

public void setLastPoint(int value)

Last point to be used in evaluating.
Default value: -1

Parameters:

value - int

coefficient

public double coefficient(int index)

Returns calculated fitted coefficient.

Parameters:

index - int

Returns:

double

getCurveYValue

public double getCurveYValue(Series s,
                             double x)

Evaluate function using calculated coefficients.

Parameters:

s - Series

x - double value to be evaluated

Returns:

double using calculated polynomial coefficients

addPoints

public void addPoints(java.util.ArrayList source)

Description copied from class: Function

Gets all points from Source series, performs a function operation and stores results in ParentSeries.

Overrides:

addPoints in class Function

Parameters:

source - ArrayList

getDescription

public java.lang.String getDescription()

Gets descriptive text.

Overrides:

getDescription in class Function

Returns:

String