PLearn::StochasticRandomVariable Class Reference

#include <RandomVar.h>

Inheritance diagram for PLearn::StochasticRandomVariable:

[legend]Collaboration diagram for PLearn::StochasticRandomVariable:

[legend]List of all members.

Public Member Functions
	StochasticRandomVariable (int length=1)
	StochasticRandomVariable *.
	StochasticRandomVariable (const RVArray &params, int length)
	StochasticRandomVariable (const RVArray &params, int length, int width)
virtual bool	isNonRandom ()
	define RandomVariable functions the only exception to this default would be a dirac distribution
virtual bool	isDiscrete ()
	most common default
virtual void	setKnownValues ()

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Detailed Description

A StochasticRandomVariable represents a "stochastic" distribution. Most "ordinary" distributions are of this type. Its parameters are its parents (which can be random or not). A StochasticRandomVariable can NEVER be random, even when its parents are non-random. Some sub-classes of StochasticRandomVariable can be defined which have no RandomVar parameters (i.e., no parents).

Definition at line 961 of file RandomVar.h.

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Constructor & Destructor Documentation

PLearn::StochasticRandomVariable::StochasticRandomVariable (  int  length = 1  )

StochasticRandomVariable *. Definition at line 945 of file RandomVar.cc.

PLearn::StochasticRandomVariable::StochasticRandomVariable (  const RVArray &  params, int  length )

Definition at line 948 of file RandomVar.cc.

PLearn::StochasticRandomVariable::StochasticRandomVariable (  const RVArray &  params, int  length, int  width )

Definition at line 953 of file RandomVar.cc.

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Member Function Documentation

virtual bool PLearn::StochasticRandomVariable::isDiscrete (   )  [inline, virtual]

most common default Implements PLearn::RandomVariable. Reimplemented in PLearn::MixtureRandomVariable, and PLearn::MultinomialRandomVariable. Definition at line 974 of file RandomVar.h.

virtual bool PLearn::StochasticRandomVariable::isNonRandom (   )  [inline, virtual]

define RandomVariable functions the only exception to this default would be a dirac distribution Implements PLearn::RandomVariable. Definition at line 971 of file RandomVar.h. Referenced by setKnownValues().

void PLearn::StochasticRandomVariable::setKnownValues (   )  [virtual]

traverse the graph of ancestors of this node and mark nodes which are deterministic descendents of marked nodes while setting their "value" field as a function of their parents. Reimplemented from PLearn::RandomVariable. Reimplemented in PLearn::MixtureRandomVariable. Definition at line 959 of file RandomVar.cc. References isNonRandom(), PLearn::RandomVariable::setValueFromParentsValue(), and PLearn::TVec< RandomVar >::size().

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The documentation for this class was generated from the following files:

• RandomVar.h
• RandomVar.cc

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