public class ExpAverage extends Moving
Title: ExpAverage class
Description: Exponential Average Function.
Copyright (c) 2005-2013 by Steema Software SL. All Rights Reserved.
Company: Steema Software SL
canUsePeriod, dPeriod, HideSourceList, noSourceRequired, series, SingleSource, updatingchart, InternalUse| Constructor and Description |
|---|
ExpAverage() |
ExpAverage(IBaseChart c) |
| Modifier and Type | Method and Description |
|---|---|
double |
calculate(Series s,
int firstIndex,
int lastIndex)
Performs function operation on SourceSeries series.
First and Last parameters are ValueIndex of first and last point used in calculation. |
java.lang.String |
getDescription()
Gets descriptive text.
|
double |
getWeight()
Performs an Exponential average based on its DataSource values.
The formula used is: ExpAverage ( point ) = ExpAverage ( previous point ) * ( 1 - Weight ) + Weight * PointValue Default value: 0.2 |
void |
setWeight(double value)
Performs an Exponential average based on its DataSource values.
Default value: 0.2D |
doCalculationaddFunctionXY, addPoints, calculateAllPoints, calculateByPeriod, calculateMany, calculatePeriod, clear, dispose, getPeriod, getPeriodAlign, getPeriodStyle, getSeries, newInstance, readResolve, recalculate, setPeriod, setPeriodAlign, setPeriodStyle, setSeries, valueListgetChart, invalidate, setBooleanProperty, setChart, setColorProperty, setDoubleProperty, setIntegerProperty, setStringPropertypublic ExpAverage()
public ExpAverage(IBaseChart c)
public double getWeight()
public void setWeight(double value)
throws ChartException
value - doubleTeeChartExceptionChartExceptiongetWeight()public double calculate(Series s, int firstIndex, int lastIndex)
public java.lang.String getDescription()
getDescription in class Function