Catalano.Statistics

Class Histogram

java.lang.Object

Catalano.Statistics.Histogram

public class Histogram
extends java.lang.Object

Histogram for discrete random values.

Constructor Summary

Constructors

Constructor and Description
Histogram(int[] values) Initializes a new instance of the Histogram class.
Histogram(int[] values, int bins) Initializes a new instance of the Histogram class.

Method Summary

Modifier and Type	Method and Description
static double[]	CDF(Histogram hist)
static double[]	CDF(int[] values)
int	getBins() Get number of bins.
double	getEntropy() Get entropy value.
int	getMax() Get maximum value.
double	getMean() Get mean value.
int	getMedian() Get median value.
int	getMin() Get minimum value.
int	getMode() Get mode value.
double	getStdDev() Get standart deviation value.
long	getTotal() Get the sum of pixels.
int[]	getValues() Get values of the histogram.
static int[]	MatchHistograms(Histogram histA, Histogram histB)
static int[]	MatchHistograms(int[] histA, int[] histB)
double[]	Normalize() Normalize histogram.
static double[]	Normalize(int[] values) Normalize histogram.

Methods inherited from class java.lang.Object

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

Constructor Detail

Histogram

public Histogram(int[] values)

Initializes a new instance of the Histogram class.

Parameters:

values - Values.

Histogram

public Histogram(int[] values,
                 int bins)

Initializes a new instance of the Histogram class.

Parameters:

values - Values.

bins - Number of bins.

Method Detail

MatchHistograms

public static int[] MatchHistograms(int[] histA,
                                    int[] histB)

MatchHistograms

public static int[] MatchHistograms(Histogram histA,
                                    Histogram histB)

CDF

public static double[] CDF(int[] values)

CDF

public static double[] CDF(Histogram hist)

Normalize

public static double[] Normalize(int[] values)

Normalize histogram.

Parameters:

values - Values.

Returns:

Normalized histogram.

getValues

public int[] getValues()

Get values of the histogram.

Returns:

Values.

getMean

public double getMean()

Get mean value.

Returns:

Mean.

getStdDev

public double getStdDev()

Get standart deviation value.

Returns:

Standart deviation.

getEntropy

public double getEntropy()

Get entropy value.

Returns:

Entropy.

getMedian

public int getMedian()

Get median value.

Returns:

Median.

getMode

public int getMode()

Get mode value.

Returns:

Mode.

getMin

public int getMin()

Get minimum value.

Returns:

Minimum.

getMax

public int getMax()

Get maximum value.

Returns:

Maximum.

getTotal

public long getTotal()

Get the sum of pixels.

Returns:

getBins

public int getBins()

Get number of bins.

Returns:

Number of bins.

Normalize

public double[] Normalize()

Normalize histogram.

Returns:

Normalized histogram.