inpro.features
Class TimeShiftingAnalysis

java.lang.Object
  inpro.features.TimeShiftingAnalysis

All Implemented Interfaces:

edu.cmu.sphinx.instrumentation.Resetable

public class TimeShiftingAnalysis
extends java.lang.Object
implements edu.cmu.sphinx.instrumentation.Resetable

class to perform linear regression and mean calculation; ideal for incrementally added data points. old data points can be discarded automatically using setMaxLag()

Author:

timo

Nested Class Summary

private static class

TimeShiftingAnalysis.DataPoint

Field Summary

protected int	currentTime
protected java.util.LinkedList<TimeShiftingAnalysis.DataPoint>	dataPoints
protected boolean	dirty
protected int	down
protected double	intercept
protected double	max
protected int	maxLag
protected double	maxPos
protected double	mean
protected double	meanDifference
protected double	min
protected double	minPos
protected double	mse
protected int	peaks
protected double	range
protected int	same
protected double	slope
protected double	stddev
protected int	up

Constructor Summary

TimeShiftingAnalysis()

TimeShiftingAnalysis(int maxLag)

Method Summary

void	add(int t, double x)
protected void	doRegression()
int	getDownCount()
double	getIntercept()
double	getLatestValue()
double	getMax()
double	getMaxPosition()
double	getMean()
double	getMeanStepDifference()
double	getMin()
double	getMinPosition()
double	getMSE()
int	getPeakCount()
double	getRange()
int	getSameCount()
double	getSlope()
int	getUpCount()
double	getWesseling()
boolean	hasValidData()
static void	main(java.lang.String[] args)
double	predictValueAt(int t)
private void	removeOldPoints()
void	reset()
void	setMaxLag(int maxLag) set the maximum lag of the time shifting analysis
void	shiftTime(int t)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

dataPoints

protected java.util.LinkedList<TimeShiftingAnalysis.DataPoint> dataPoints

maxLag

protected int maxLag

currentTime

protected int currentTime

dirty

protected boolean dirty

slope

protected double slope

intercept

protected double intercept

mean

protected double mean

stddev

protected double stddev

range

protected double range

mse

protected double mse

meanDifference

protected double meanDifference

minPos

protected double minPos

maxPos

protected double maxPos

max

protected double max

min

protected double min

up

protected int up

down

protected int down

same

protected int same

peaks

protected int peaks

Constructor Detail

TimeShiftingAnalysis

public TimeShiftingAnalysis(int maxLag)

TimeShiftingAnalysis

public TimeShiftingAnalysis()

Method Detail

add

public void add(int t,
                double x)

shiftTime

public void shiftTime(int t)

removeOldPoints

private void removeOldPoints()

setMaxLag

public void setMaxLag(int maxLag)

set the maximum lag of the time shifting analysis

Parameters:

maxLag - maximum lag of the oldest considered data point 0: consider all data points

doRegression

protected void doRegression()

getSlope

public double getSlope()

getIntercept

public double getIntercept()

getMean

public double getMean()

getRange

public double getRange()

getMSE

public double getMSE()

getMeanStepDifference

public double getMeanStepDifference()

getMinPosition

public double getMinPosition()

getMaxPosition

public double getMaxPosition()

getMin

public double getMin()

getMax

public double getMax()

predictValueAt

public double predictValueAt(int t)

getLatestValue

public double getLatestValue()

getWesseling

public double getWesseling()

getUpCount

public int getUpCount()

getDownCount

public int getDownCount()

getSameCount

public int getSameCount()

getPeakCount

public int getPeakCount()

hasValidData

public boolean hasValidData()

reset

public void reset()

Specified by:

reset in interface edu.cmu.sphinx.instrumentation.Resetable

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

main

public static void main(java.lang.String[] args)