io.improbable.keanu.distributions.continuous

Class Gamma

java.lang.Object

io.improbable.keanu.distributions.continuous.Gamma

All Implemented Interfaces:

ContinuousDistribution, Distribution<DoubleTensor>

public class Gamma
extends java.lang.Object
implements ContinuousDistribution

Method Summary

Modifier and Type	Method and Description
Diffs	dLogProb(DoubleTensor x)
DoubleTensor	logProb(DoubleTensor x)
static DoubleVertex	logProbOutput(DoublePlaceholderVertex x, DoublePlaceholderVertex theta, DoublePlaceholderVertex k)
DoubleTensor	sample(long[] shape, KeanuRandom random)
static ContinuousDistribution	withParameters(DoubleTensor theta, DoubleTensor k)

Methods inherited from class java.lang.Object

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

Method Detail

withParameters

public static ContinuousDistribution withParameters(DoubleTensor theta,
                                                    DoubleTensor k)

Parameters:

theta - scale

k - shape

Returns:

a new ContinuousDistribution object

sample

public DoubleTensor sample(long[] shape,
                           KeanuRandom random)

Specified by:

sample in interface Distribution<DoubleTensor>

logProb

public DoubleTensor logProb(DoubleTensor x)

Specified by:

logProb in interface Distribution<DoubleTensor>

logProbOutput

public static DoubleVertex logProbOutput(DoublePlaceholderVertex x,
                                         DoublePlaceholderVertex theta,
                                         DoublePlaceholderVertex k)

dLogProb

public Diffs dLogProb(DoubleTensor x)

Specified by:

dLogProb in interface ContinuousDistribution