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PLearn::IsMissingVariable Class Reference

A scalar var; equal 1 if input1!=c, 0 otherwise. More...

#include <IsMissingVariable.h>

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List of all members.

Public Member Functions

 IsMissingVariable ()
 Default constructor for persistence.

 IsMissingVariable (Variable *input1, bool parallel=0)
 PLEARN_DECLARE_OBJECT (IsMissingVariable)
virtual string info () const
 returns a bit more informative string about object (default returns classname())

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


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

bool parallel

Private Types

typedef UnaryVariable inherited

Detailed Description

A scalar var; equal 1 if input1!=c, 0 otherwise.

Definition at line 53 of file IsMissingVariable.h.


Member Typedef Documentation

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

Reimplemented from PLearn::UnaryVariable.

Definition at line 55 of file IsMissingVariable.h.

Referenced by IsMissingVariable().


Constructor & Destructor Documentation

PLearn::IsMissingVariable::IsMissingVariable  )  [inline]
 

Default constructor for persistence.

Definition at line 62 of file IsMissingVariable.h.

PLearn::IsMissingVariable::IsMissingVariable Variable input1,
bool  parallel = 0
 

Definition at line 55 of file IsMissingVariable.cc.

References inherited.


Member Function Documentation

void PLearn::IsMissingVariable::bprop  )  [virtual]
 

Implements PLearn::Variable.

Definition at line 91 of file IsMissingVariable.cc.

void PLearn::IsMissingVariable::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 60 of file IsMissingVariable.cc.

References PLearn::declareOption(), and PLearn::OptionList.

void PLearn::IsMissingVariable::fprop  )  [virtual]
 

compute output given input

Implements PLearn::Variable.

Definition at line 75 of file IsMissingVariable.cc.

References PLearn::Variable::nelems(), and parallel.

virtual string PLearn::IsMissingVariable::info  )  const [inline, virtual]
 

returns a bit more informative string about object (default returns classname())

Reimplemented from PLearn::Object.

Definition at line 68 of file IsMissingVariable.h.

PLearn::IsMissingVariable::PLEARN_DECLARE_OBJECT IsMissingVariable   ) 
 

void PLearn::IsMissingVariable::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 66 of file IsMissingVariable.cc.

References PLearn::Var::length(), parallel, and PLearn::Var::width().

void PLearn::IsMissingVariable::symbolicBprop  )  [virtual]
 

compute a piece of new Var graph that represents the symbolic derivative of this Var

Reimplemented from PLearn::Variable.

Definition at line 93 of file IsMissingVariable.cc.


Member Data Documentation

bool PLearn::IsMissingVariable::parallel [protected]
 

Definition at line 58 of file IsMissingVariable.h.

Referenced by fprop(), and recomputeSize().


The documentation for this class was generated from the following files:
Generated on Tue Aug 17 16:25:02 2004 for PLearn by doxygen 1.3.7