org.android.activityminer.logic.features
Class CrossCorrelationFeature<T extends Enum<T> & Dimensions>

java.lang.Object
  org.android.activityminer.logic.features.AbstractFeature
      org.android.activityminer.logic.features.CrossCorrelationFeature<T>

Type Parameters:

T - the enumeration type for the dimensions

All Implemented Interfaces:

Feature

public class CrossCorrelationFeature<T extends Enum<T> & Dimensions>
extends AbstractFeature

Implementation of an cross-correlation feature for two different dimension. It uses the variance calculators of the 2 dimensions, with the known difference of values to its mean. crosscorr(x,y) = ( covariance(x,y )/ (stddevx * stddevy)

Field Summary

private VarianceCalculator<T>	varCalculator1 The calculator providing the variance for the first dimension.
private VarianceCalculator<T>	varCalculator2 The calculator providing the variance for the second dimension.

Fields inherited from class org.android.activityminer.logic.features.AbstractFeature

featureType

Constructor Summary

CrossCorrelationFeature(FeatureTypes featureType, VarianceCalculator<T> varCalculator1, VarianceCalculator<T> varCalculator2)
Constructor

Method Summary

Double	getFeatureValue() Getter for the feature value
VarianceCalculator<T>	getVarianceCalculator1() Getter for the variance calculator of first dimension.
VarianceCalculator<T>	getVarianceCalculator2() Getter for the variance calculator of second dimension.

Methods inherited from class org.android.activityminer.logic.features.AbstractFeature

getFeatureType

Methods inherited from class java.lang.Object

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

Field Detail

varCalculator1

private final VarianceCalculator<T extends Enum<T> & Dimensions> varCalculator1

The calculator providing the variance for the first dimension.

varCalculator2

private final VarianceCalculator<T extends Enum<T> & Dimensions> varCalculator2

The calculator providing the variance for the second dimension.

Constructor Detail

CrossCorrelationFeature

public CrossCorrelationFeature(FeatureTypes featureType,
                               VarianceCalculator<T> varCalculator1,
                               VarianceCalculator<T> varCalculator2)

Constructor

Parameters:

featureType - the feature type

varCalculator1 - the variance calculator for the first dimension

varCalculator2 - the variance calculator for the second dimension

Method Detail

getFeatureValue

public Double getFeatureValue()

Description copied from interface: Feature

Getter for the feature value

Returns:

the feature value

getVarianceCalculator1

public final VarianceCalculator<T> getVarianceCalculator1()

Getter for the variance calculator of first dimension.

Returns:

the variance calculator of first dimension

getVarianceCalculator2

public final VarianceCalculator<T> getVarianceCalculator2()

Getter for the variance calculator of second dimension.

Returns:

the variance calculator of second dimension