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PLearn::UnaryHardSlopeVariable Class Reference

#include <UnaryHardSlopeVariable.h>

Inheritance diagram for PLearn::UnaryHardSlopeVariable:

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Collaboration diagram for PLearn::UnaryHardSlopeVariable:

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List of all members.

Public Member Functions

 UnaryHardSlopeVariable ()
 Default constructor for persistence.

 UnaryHardSlopeVariable (Variable *input, real l=-1, real r=1)
 PLEARN_DECLARE_OBJECT (UnaryHardSlopeVariable)
virtual void build ()
 Should call simply inherited::build(), then this class's build_().

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 ()

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 Member Functions

void build_ ()

Protected Attributes

real left
real right
real inv_slope

Private Types

typedef UnaryVariable inherited

Detailed Description

* Simple unary transform with hard_slope function *

Definition at line 54 of file UnaryHardSlopeVariable.h.


Member Typedef Documentation

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

Reimplemented from PLearn::UnaryVariable.

Definition at line 56 of file UnaryHardSlopeVariable.h.

Referenced by UnaryHardSlopeVariable().


Constructor & Destructor Documentation

PLearn::UnaryHardSlopeVariable::UnaryHardSlopeVariable  )  [inline]
 

Default constructor for persistence.

Definition at line 65 of file UnaryHardSlopeVariable.h.

PLearn::UnaryHardSlopeVariable::UnaryHardSlopeVariable Variable input,
real  l = -1,
real  r = 1
 

Definition at line 56 of file UnaryHardSlopeVariable.cc.

References inherited, PLearn::left(), and PLearn::right().


Member Function Documentation

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

Implements PLearn::Variable.

Definition at line 102 of file UnaryHardSlopeVariable.cc.

References inv_slope, left, PLearn::Variable::nelems(), right, and x.

void PLearn::UnaryHardSlopeVariable::build  )  [virtual]
 

Should call simply inherited::build(), then this class's build_().

This method should be callable again at later times, after modifying some option fields to change the "architecture" of the object.

Reimplemented from PLearn::Variable.

Definition at line 62 of file UnaryHardSlopeVariable.cc.

References build_().

void PLearn::UnaryHardSlopeVariable::build_  )  [protected]
 

This method should be redefined in subclasses and do the actual building of the object according to previously set option fields. Constructors can just set option fields, and then call build_. This method is NOT virtual, and will typically be called only from three places: a constructor, the public virtual build() method, and possibly the public virtual read method (which calls its parent's read). build_() can assume that it's parent's build_ has already been called.

Reimplemented from PLearn::Variable.

Definition at line 69 of file UnaryHardSlopeVariable.cc.

References inv_slope, and right.

Referenced by build().

void PLearn::UnaryHardSlopeVariable::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 75 of file UnaryHardSlopeVariable.cc.

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

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

compute output given input

Implements PLearn::Variable.

Definition at line 92 of file UnaryHardSlopeVariable.cc.

References PLearn::hard_slope(), left, PLearn::Variable::nelems(), and right.

PLearn::UnaryHardSlopeVariable::PLEARN_DECLARE_OBJECT UnaryHardSlopeVariable   ) 
 

void PLearn::UnaryHardSlopeVariable::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 82 of file UnaryHardSlopeVariable.cc.

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


Member Data Documentation

real PLearn::UnaryHardSlopeVariable::inv_slope [protected]
 

Definition at line 61 of file UnaryHardSlopeVariable.h.

Referenced by bprop(), and build_().

real PLearn::UnaryHardSlopeVariable::left [protected]
 

Definition at line 59 of file UnaryHardSlopeVariable.h.

Referenced by bprop(), and fprop().

real PLearn::UnaryHardSlopeVariable::right [protected]
 

Definition at line 60 of file UnaryHardSlopeVariable.h.

Referenced by bprop(), build_(), and fprop().


The documentation for this class was generated from the following files:
Generated on Tue Aug 17 16:25:49 2004 for PLearn by doxygen 1.3.7