Package edu.cmu.tetrad.util.dist

Class Beta

java.lang.Object

edu.cmu.tetrad.util.dist.Beta

All Implemented Interfaces:

Distribution, TetradSerializable, Serializable

public class Beta
extends Object
implements Distribution

Implements a Beta distribution for purposes of drawing random numbers. The parameters are alpha and beta. See Wikipedia.

Version:

$Id: $Id

Author:

josephramsey

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
String	getName()	Please don't make me say it...
int	getNumParameters()	Uh, there are 2 parameters...
double	getParameter(int index)	Returns the index'th parameter.
String	getParameterName(int index)	The name of the index'th parameter, for display purposes.
double	nextRandom()	Returns the next random.
static Beta	serializableInstance()	Generates a simple exemplar of this class to test serialization.
void	setParameter(int index, double value)	Sets the index'th parameter to the given value.
String	toString()	A string representation of the distribution.

Methods inherited from class java.lang.Object

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

Method Details

serializableInstance

public static Beta serializableInstance()

Generates a simple exemplar of this class to test serialization.

Returns:

Ibid.

nextRandom

public double nextRandom()

Returns the next random.

Specified by:

nextRandom in interface Distribution

Returns:

Ibid.

setParameter

public void setParameter(int index,
 double value)

Sets the index'th parameter to the given value.

The order of parameters is alpha = 0, beta = 1.

Specified by:

setParameter in interface Distribution

Parameters:

index - Ibid. Must be >= 0 and < # parameters.

value - Ibid.

getParameter

public double getParameter(int index)

Returns the index'th parameter.

The order of parameters is alpha = 0, beta = 1.

Specified by:

getParameter in interface Distribution

Parameters:

index - Ibid. Muist be <= 0 and < # parameters.

Returns:

The Ibid.

getParameterName

public String getParameterName(int index)

The name of the index'th parameter, for display purposes.

The order of parameters is alpha = 0, beta = 1.

Specified by:

getParameterName in interface Distribution

Parameters:

index - Ibid. Must be >= 0 and < # parameters.

Returns:

Ibid.

getNumParameters

public int getNumParameters()

Uh, there are 2 parameters...

Specified by:

getNumParameters in interface Distribution

Returns:

Ibid.

getName

public String getName()

Please don't make me say it...

Specified by:

getName in interface Distribution

Returns:

a String object

toString

public String toString()

A string representation of the distribution.

Overrides:

toString in class Object

Returns:

a String object