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

java.lang.Object
  org.android.activityminer.logic.features.calculators.AbstractCalculator<T,U>
      org.android.activityminer.logic.features.calculators.AbstractCompositeCalculator<T,Double>
          org.android.activityminer.logic.features.calculators.AbstractEntropyCalculator<T>

Type Parameters:

T - the enumeration type for the dimensions

All Implemented Interfaces:

Calculator<Double>, CompositeCalculator<Double>

Direct Known Subclasses:

EntropyCalculator, FFTEntropyCalculator

public class AbstractEntropyCalculator<T extends Enum<T> & Dimensions>
extends AbstractCompositeCalculator<T,Double>

Implementation of an abstract entropy calculator.

Field Summary

protected double	entropySum The sum of entropy function values [f(p) = p* log2(p) ]
protected double	valueSum The sum of values

Fields inherited from class org.android.activityminer.logic.features.calculators.AbstractCalculator

dimension, value

Constructor Summary

AbstractEntropyCalculator(T dimension)
Constructor

Method Summary

Double	getCompositeValue() Does calculate the composite value.
Double	getInitialValue() Method for value initialization.

Methods inherited from class org.android.activityminer.logic.features.calculators.AbstractCompositeCalculator

getValue, reset

Methods inherited from class org.android.activityminer.logic.features.calculators.AbstractCalculator

getDimension

Methods inherited from class java.lang.Object

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

Field Detail

valueSum

protected double valueSum

The sum of values

entropySum

protected double entropySum

The sum of entropy function values [f(p) = p* log2(p) ]

Constructor Detail

AbstractEntropyCalculator

public AbstractEntropyCalculator(T dimension)

Constructor

Parameters:

dimension - the sensor observation dimension

Method Detail

getInitialValue

public final Double getInitialValue()

Description copied from interface: Calculator

Method for value initialization.

Returns:

the initialized value

getCompositeValue

public Double getCompositeValue()

Description copied from interface: CompositeCalculator

Does calculate the composite value.

Returns:

the composite value