io.improbable.keanu.vertices.dbl.probabilistic

Class UniformVertex

java.lang.Object

io.improbable.keanu.vertices.Vertex<java.lang.Double>

io.improbable.keanu.vertices.dbl.DoubleVertex

io.improbable.keanu.vertices.dbl.probabilistic.ProbabilisticDouble

io.improbable.keanu.vertices.dbl.probabilistic.UniformVertex

All Implemented Interfaces:

Identifiable, io.improbable.keanu.kotlin.DoubleOperators<DoubleVertex>, io.improbable.keanu.kotlin.Operators<DoubleVertex>

public class UniformVertex
extends ProbabilisticDouble

Field Summary

Fields inherited from class io.improbable.keanu.vertices.Vertex

idGenerator

Constructor Summary

Constructors

Constructor and Description
UniformVertex(double xMin, double xMax)
UniformVertex(double xMin, double xMax, java.util.Random random)
UniformVertex(DoubleVertex xMin, DoubleVertex xMax)
UniformVertex(DoubleVertex xMin, DoubleVertex xMax, java.util.Random random)

Method Summary

Modifier and Type	Method and Description
java.util.Map<java.lang.String,java.lang.Double>	dDensityAtValue() This returns the derivative of the density function with respect to any dependent vertices.
double	density(java.lang.Double value) This is the value of the probability density at the supplied value.
java.lang.Double	sample()

Methods inherited from class io.improbable.keanu.vertices.dbl.probabilistic.ProbabilisticDouble

getDualNumber, isProbabilistic, lazyEval, updateValue

Methods inherited from class io.improbable.keanu.vertices.dbl.DoubleVertex

abs, div, div, divideBy, divideBy, divideBy, lambda, minus, minus, minus, multiply, multiply, multiply, plus, plus, plus, pow, times, times, unaryMinus

Methods inherited from class io.improbable.keanu.vertices.Vertex

addChild, addParent, addParents, densityAtValue, dlnDensityAtValue, equals, getChildren, getConnectedGraph, getId, getParents, getValue, hashCode, isObserved, logDensity, logDensityAtValue, observe, observeOwnValue, setAndCascade, setParents, setParents, setValue, unobserve, updateChildren

Methods inherited from class java.lang.Object

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

Constructor Detail

UniformVertex

public UniformVertex(DoubleVertex xMin,
                     DoubleVertex xMax,
                     java.util.Random random)

UniformVertex

public UniformVertex(DoubleVertex xMin,
                     DoubleVertex xMax)

UniformVertex

public UniformVertex(double xMin,
                     double xMax,
                     java.util.Random random)

UniformVertex

public UniformVertex(double xMin,
                     double xMax)

Method Detail

density

public double density(java.lang.Double value)

Description copied from class: Vertex

This is the value of the probability density at the supplied value.

Specified by:

density in class Vertex<java.lang.Double>

Parameters:

value - The supplied value.

Returns:

The probability.

dDensityAtValue

public java.util.Map<java.lang.String,java.lang.Double> dDensityAtValue()

Description copied from class: Vertex

This returns the derivative of the density function with respect to any dependent vertices.

Specified by:

dDensityAtValue in class Vertex<java.lang.Double>

Returns:

a Map containing { dependent vertex Id -> density slope w.r.t. dependent vertex}

sample

public java.lang.Double sample()

Specified by:

sample in class Vertex<java.lang.Double>

Returns:

a sample from the vertex's distribution. For non-probabilistic vertices, this will always be the same value.