Class

com.github.jonnylaw.model

ParticleMetropolisAsync

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case class ParticleMetropolisAsync(logLikelihood: (Parameters) ⇒ Future[LogLikelihood], initialParams: Parameters, proposal: (Parameters) ⇒ Rand[Parameters], prior: (Parameters) ⇒ LogLikelihood)(implicit ec: ExecutionContext) extends MetropolisHastings[Future] with Product with Serializable

Implementation of the particle metropolis algorithm

logLikelihood

a function from parameters to LogLikelihood

initialParams

the starting parameters for the metropolis algorithm

proposal

a SYMMETRIC proposal distribution for the metropolis algorithm (eg. Gaussian)

Linear Supertypes
Serializable, Serializable, Product, Equals, MetropolisHastings[Future], AnyRef, Any
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  1. ParticleMetropolisAsync
  2. Serializable
  3. Serializable
  4. Product
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  6. MetropolisHastings
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Instance Constructors

  1. new ParticleMetropolisAsync(logLikelihood: (Parameters) ⇒ Future[LogLikelihood], initialParams: Parameters, proposal: (Parameters) ⇒ Rand[Parameters], prior: (Parameters) ⇒ LogLikelihood)(implicit ec: ExecutionContext)

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    logLikelihood

    a function from parameters to LogLikelihood

    initialParams

    the starting parameters for the metropolis algorithm

    proposal

    a SYMMETRIC proposal distribution for the metropolis algorithm (eg. Gaussian)

Value Members

  1. final def !=(arg0: Any): Boolean

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    AnyRef → Any
  2. final def ##(): Int

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    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

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    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

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    Any
  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
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    AnyRef
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    @throws( ... )
  6. implicit val ec: ExecutionContext

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  7. final def eq(arg0: AnyRef): Boolean

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    AnyRef
  8. def finalize(): Unit

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    Attributes
    protected[java.lang]
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    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  9. def g: Monad[Future]

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  10. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  11. val initialParams: Parameters

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    the starting parameters for the metropolis algorithm

    the starting parameters for the metropolis algorithm

    Definition Classes
    ParticleMetropolisAsyncMetropolisHastings
  12. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  13. val logLikelihood: (Parameters) ⇒ Future[LogLikelihood]

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    a function from parameters to LogLikelihood

    a function from parameters to LogLikelihood

    Definition Classes
    ParticleMetropolisAsyncMetropolisHastings
  14. def logTransition(from: Parameters, to: Parameters): LogLikelihood

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    Definition of the log-transition, used when calculating the acceptance ratio This is the probability of moving between parameters according to the proposal distribution Note: When using a symmetric proposal distribution (eg.

    Definition of the log-transition, used when calculating the acceptance ratio This is the probability of moving between parameters according to the proposal distribution Note: When using a symmetric proposal distribution (eg. Normal) this cancels in the acceptance ratio

    from

    the previous parameter value

    to

    the proposed parameter value

    Definition Classes
    ParticleMetropolisAsyncMetropolisHastings
  15. def mhStep(p: ParamsState): Future[ParamsState]

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    A single step of the metropolis hastings algorithm to be used with breeze implementation of Markov Chain.

    A single step of the metropolis hastings algorithm to be used with breeze implementation of Markov Chain. This is an alteration to the implementation in breeze, here ParamsState holds on to the previous calculated pseudo marginal log-likelihood value so we don't need to run the previous particle filter again each iteration

    Definition Classes
    MetropolisHastings
  16. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  17. final def notify(): Unit

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    AnyRef
  18. final def notifyAll(): Unit

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    AnyRef
  19. def params: Source[ParamsState, NotUsed]

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    Use the same step for iterations in a stream

    Use the same step for iterations in a stream

    Definition Classes
    ParticleMetropolisAsyncMetropolisHastings
  20. val prior: (Parameters) ⇒ LogLikelihood

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    Prior distribution for the parameters, with default implementation

    Prior distribution for the parameters, with default implementation

    Definition Classes
    ParticleMetropolisAsyncMetropolisHastings
  21. val proposal: (Parameters) ⇒ Rand[Parameters]

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    a SYMMETRIC proposal distribution for the metropolis algorithm (eg.

    a SYMMETRIC proposal distribution for the metropolis algorithm (eg. Gaussian)

    Definition Classes
    ParticleMetropolisAsyncMetropolisHastings
  22. final def synchronized[T0](arg0: ⇒ T0): T0

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    AnyRef
  23. final def wait(): Unit

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    @throws( ... )
  24. final def wait(arg0: Long, arg1: Int): Unit

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    @throws( ... )
  25. final def wait(arg0: Long): Unit

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Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from MetropolisHastings[Future]

Inherited from AnyRef

Inherited from Any

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