java.lang.Object
- net.sourceforge.jiu.color.data.BaseCoOccurrenceFrequencyMatrix

All Implemented Interfaces:

CoOccurrenceFrequencyMatrix

Direct Known Subclasses:

MemoryCoOccurrenceFrequencyMatrix
```
public abstract class BaseCoOccurrenceFrequencyMatrix
extends Object
implements CoOccurrenceFrequencyMatrix
```
This abstract class encapsulates all data of a co-occurrence frequency matrix except for the frequency values. The method computeStatistics is implemented. Any class extending this class only has to deal with storing the frequency values (MemoryCoOccurrenceFrequencyMatrix does this by using a one-dimensional array internally).

Author:

Marco Schmidt

Field Summary

Fields
Modifier and Type	Field	Description
`private double[]`	`cofMean`	co-occurrence frequency mean $\mu_{C(j)}$
`private double[]`	`cofStddev`	co-occurrence frequency standard deviation $\sigma_{C(j)}$
`private double`	`scofMean`	self co-occurrence frequency mean $\mu_S$
`private double`	`scofStddev`	self co-occurrence frequency standard deviation $\sigma_S$
`private double`	`scofSum`	equals scofMean + scofStddev

Constructor Summary

Constructors
Constructor Description

BaseCoOccurrenceFrequencyMatrix()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private void`	`computeCoOccurrenceFrequencyMeanValues()`
`private void`	`computeCoOccurrenceFrequencyStandardDeviationValues()`
`private void`	`computeSelfCoOccurrenceFrequencyMeanValue()`
`private void`	`computeSelfCoOccurrenceFrequencyStandardDeviationValue()`
`void`	`computeStatistics()`	Assumes that the co-occurrence frequency values have been initialized.
`double`	`getMean(int index)`	Returns the mean of the co-occurrence frequency values.
`double`	`getScofMean()`	Returns the mean of all self co-occurrence frequency values.
`double`	`getScofStddev()`	Returns the standard deviation of all self co-occurrence frequency values.
`double`	`getScofSum()`	Return the sum of mean and standard deviation of the self co-occurrence frequency values.
`double`	`getStddev(int index)`	Returns the standard deviation of the values getValue(index, i) with i running from 0 to `CoOccurrenceFrequencyMatrix.getDimension()` - 1.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.sourceforge.jiu.color.data.CoOccurrenceFrequencyMatrix
clear, getDimension, getValue, getValue, setValue

- Field Detail
  - cofMean
```
private double[] cofMean
```
    co-occurrence frequency mean $\mu_{C(j)}$
  - cofStddev
```
private double[] cofStddev
```
    co-occurrence frequency standard deviation $\sigma_{C(j)}$
  - scofMean
```
private double scofMean
```
    self co-occurrence frequency mean $\mu_S$
  - scofStddev
```
private double scofStddev
```
    self co-occurrence frequency standard deviation $\sigma_S$
  - scofSum
```
private double scofSum
```
    equals scofMean + scofStddev
- Constructor Detail
  - BaseCoOccurrenceFrequencyMatrix
```
public BaseCoOccurrenceFrequencyMatrix()
```
- Method Detail
  - computeCoOccurrenceFrequencyMeanValues
```
private void computeCoOccurrenceFrequencyMeanValues()
```
  - computeCoOccurrenceFrequencyStandardDeviationValues
```
private void computeCoOccurrenceFrequencyStandardDeviationValues()
```
  - computeSelfCoOccurrenceFrequencyMeanValue
```
private void computeSelfCoOccurrenceFrequencyMeanValue()
```
  - computeSelfCoOccurrenceFrequencyStandardDeviationValue
```
private void computeSelfCoOccurrenceFrequencyStandardDeviationValue()
```
  - computeStatistics
```
public void computeStatistics()
```
    Assumes that the co-occurrence frequency values have been initialized. Computes mean and standard deviation for co-occurrence and self co-occurrence frequency values.
    
    Specified by:
    
    computeStatistics in interface CoOccurrenceFrequencyMatrix
  - getMean
```
public double getMean(int index)
```
    Returns the mean of the co-occurrence frequency values.
    
    Specified by:
    
    getMean in interface CoOccurrenceFrequencyMatrix
  - getStddev
```
public double getStddev(int index)
```
    Description copied from interface: CoOccurrenceFrequencyMatrix
    
    Returns the standard deviation of the values getValue(index, i) with i running from 0 to CoOccurrenceFrequencyMatrix.getDimension() - 1.
    
    Specified by:
    
    getStddev in interface CoOccurrenceFrequencyMatrix
    
    Parameters:
    
    index - first argument to all calls of getValue used to determine the standard deviation
  - getScofMean
```
public double getScofMean()
```
    Returns the mean of all self co-occurrence frequency values. This value is called $\mu_S$ in Shufelt's paper. This value is determined once within computeStatistics().
    
    Specified by:
    
    getScofMean in interface CoOccurrenceFrequencyMatrix
  - getScofStddev
```
public double getScofStddev()
```
    Returns the standard deviation of all self co-occurrence frequency values. This value is called $\sigma_S$ in Shufelt's paper. This value is determined once within a call to computeStatistics().
    
    Specified by:
    
    getScofStddev in interface CoOccurrenceFrequencyMatrix
    
    Returns:
    
    standard deviation for pairs
  - getScofSum
```
public double getScofSum()
```
    Return the sum of mean and standard deviation of the self co-occurrence frequency values. Assumes that computeStatistics() has been called already.
    
    Specified by:
    
    getScofSum in interface CoOccurrenceFrequencyMatrix
    
    Returns:
    
    sum of mean and standard deviation of the self co-occurrence frequency values

Class BaseCoOccurrenceFrequencyMatrix

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface net.sourceforge.jiu.color.data.CoOccurrenceFrequencyMatrix

Field Detail

cofMean

cofStddev

scofMean

scofStddev

scofSum

Constructor Detail

BaseCoOccurrenceFrequencyMatrix

Method Detail

computeCoOccurrenceFrequencyMeanValues

computeCoOccurrenceFrequencyStandardDeviationValues

computeSelfCoOccurrenceFrequencyMeanValue

computeSelfCoOccurrenceFrequencyStandardDeviationValue

computeStatistics

getMean

getStddev

getScofMean

getScofStddev

getScofSum