PLearn::IsAboveThresholdVariable Class Reference

Does elementwise newx_i = (x_i>=threshold ?truevalue :falsevalue);. More...

#include <IsAboveThresholdVariable.h>

Inheritance diagram for PLearn::IsAboveThresholdVariable:

[legend]Collaboration diagram for PLearn::IsAboveThresholdVariable:

[legend]List of all members.

Public Member Functions
	IsAboveThresholdVariable ()
	Default constructor for persistence.
	IsAboveThresholdVariable (Variable *input, real the_threshold, real the_truevalue, real the_falsevalue, bool strict=false)
	PLEARN_DECLARE_OBJECT (IsAboveThresholdVariable)
virtual void	recomputeSize (int &l, int &w) const
	Recomputes the length l and width w that this variable should have, according to its parent variables.
virtual void	fprop ()
	compute output given input
virtual void	bprop ()
virtual void	symbolicBprop ()
	compute a piece of new Var graph that represents the symbolic derivative of this Var
virtual void	rfprop ()
Static Public Member Functions
void	declareOptions (OptionList &ol)
	redefine this in subclasses: call declareOption(...) for each option, and then call inherited::declareOptions(options) ( see the declareOption function further down)
Protected Attributes
real	threshold
real	truevalue
real	falsevalue
bool	strict
Private Types
typedef UnaryVariable	inherited

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Detailed Description

Does elementwise newx_i = (x_i>=threshold ?truevalue :falsevalue);.

Definition at line 55 of file IsAboveThresholdVariable.h.

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Member Typedef Documentation

typedef UnaryVariable PLearn::IsAboveThresholdVariable::inherited [private]

Reimplemented from PLearn::UnaryVariable. Definition at line 57 of file IsAboveThresholdVariable.h. Referenced by IsAboveThresholdVariable().

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Constructor & Destructor Documentation

PLearn::IsAboveThresholdVariable::IsAboveThresholdVariable (   )  [inline]

Default constructor for persistence. Definition at line 65 of file IsAboveThresholdVariable.h. References falsevalue, threshold, and truevalue.

PLearn::IsAboveThresholdVariable::IsAboveThresholdVariable (  Variable *  input, real  the_threshold, real  the_truevalue, real  the_falsevalue, bool  strict = false )

Definition at line 55 of file IsAboveThresholdVariable.cc. References inherited.

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Member Function Documentation

void PLearn::IsAboveThresholdVariable::bprop (   )  [virtual]

Implements PLearn::Variable. Definition at line 98 of file IsAboveThresholdVariable.cc.

void PLearn::IsAboveThresholdVariable::declareOptions (  OptionList &  ol  )  [static]

redefine this in subclasses: call declareOption(...) for each option, and then call inherited::declareOptions(options) ( see the declareOption function further down) ex: static void declareOptions(OptionList& ol) { declareOption(ol, "inputsize", &MyObject::inputsize_, OptionBase::buildoption, "the size of the input\n it must be provided"); declareOption(ol, "weights", &MyObject::weights, OptionBase::learntoption, "the learnt model weights"); inherited::declareOptions(ol); } Reimplemented from PLearn::UnaryVariable. Definition at line 63 of file IsAboveThresholdVariable.cc. References PLearn::declareOption(), and PLearn::OptionList.

void PLearn::IsAboveThresholdVariable::fprop (   )  [virtual]

compute output given input Implements PLearn::Variable. Definition at line 81 of file IsAboveThresholdVariable.cc. References falsevalue, strict, threshold, and truevalue.

PLearn::IsAboveThresholdVariable::PLEARN_DECLARE_OBJECT (  IsAboveThresholdVariable   )

void PLearn::IsAboveThresholdVariable::recomputeSize (  int &  l, int &  w )  const [virtual]

Recomputes the length l and width w that this variable should have, according to its parent variables. This is used for ex. by sizeprop() The default version stupidly returns the current dimensions, so make sure to overload it in subclasses if this is not appropriate. Reimplemented from PLearn::Variable. Definition at line 72 of file IsAboveThresholdVariable.cc. References PLearn::Var::length(), and PLearn::Var::width().

void PLearn::IsAboveThresholdVariable::rfprop (   )  [virtual]

Reimplemented from PLearn::Variable. Definition at line 103 of file IsAboveThresholdVariable.cc. References PLearn::TVec< T >::length(), and PLearn::UnaryVariable::resizeRValue().

void PLearn::IsAboveThresholdVariable::symbolicBprop (   )  [virtual]

compute a piece of new Var graph that represents the symbolic derivative of this Var Reimplemented from PLearn::Variable. Definition at line 100 of file IsAboveThresholdVariable.cc.

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Member Data Documentation

real PLearn::IsAboveThresholdVariable::falsevalue [protected]

Definition at line 60 of file IsAboveThresholdVariable.h. Referenced by fprop(), and IsAboveThresholdVariable().

bool PLearn::IsAboveThresholdVariable::strict [protected]

Definition at line 61 of file IsAboveThresholdVariable.h. Referenced by fprop().

real PLearn::IsAboveThresholdVariable::threshold [protected]

Definition at line 60 of file IsAboveThresholdVariable.h. Referenced by fprop(), and IsAboveThresholdVariable().

real PLearn::IsAboveThresholdVariable::truevalue [protected]

Definition at line 60 of file IsAboveThresholdVariable.h. Referenced by fprop(), and IsAboveThresholdVariable().

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

• IsAboveThresholdVariable.h
• IsAboveThresholdVariable.cc

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