edu.umass.cs.mallet.base.types

Class Dirichlet

java.lang.Object

edu.umass.cs.mallet.base.types.Dirichlet

public class Dirichlet
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Dirichlet.Estimator
static class	Dirichlet.MethodOfMomentsEstimator

Constructor Summary

Constructors

Constructor and Description
Dirichlet(Alphabet dict)
Dirichlet(Alphabet dict, double alpha)
Dirichlet(double[] alphas)
Dirichlet(double[] alphas, Alphabet dict)
Dirichlet(int size)
Dirichlet(int size, double alpha)

Method Summary

Modifier and Type	Method and Description
double	alpha(int featureIndex)
Alphabet	getAlphabet()
void	print()
Dirichlet	randomDirichlet(Random r, double averageAlpha)
FeatureSequence	randomFeatureSequence(Random r, int length)
FeatureVector	randomFeatureVector(Random r, int size)
Multinomial	randomMultinomial(Random r)
protected double[]	randomRawMultinomial(Random r)
TokenSequence	randomTokenSequence(Random r, int length)
double[]	randomVector(Random r)
int	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

Dirichlet

public Dirichlet(double[] alphas,
                 Alphabet dict)

Dirichlet

public Dirichlet(double[] alphas)

Dirichlet

public Dirichlet(Alphabet dict)

Dirichlet

public Dirichlet(Alphabet dict,
                 double alpha)

Dirichlet

public Dirichlet(int size)

Dirichlet

public Dirichlet(int size,
                 double alpha)

Method Detail

getAlphabet

public Alphabet getAlphabet()

size

public int size()

alpha

public double alpha(int featureIndex)

print

public void print()

randomRawMultinomial

protected double[] randomRawMultinomial(Random r)

randomMultinomial

public Multinomial randomMultinomial(Random r)

randomDirichlet

public Dirichlet randomDirichlet(Random r,
                                 double averageAlpha)

randomFeatureSequence

public FeatureSequence randomFeatureSequence(Random r,
                                             int length)

randomFeatureVector

public FeatureVector randomFeatureVector(Random r,
                                         int size)

randomTokenSequence

public TokenSequence randomTokenSequence(Random r,
                                         int length)

randomVector

public double[] randomVector(Random r)