PLearn 0.1
Public Member Functions | Static Public Member Functions | Static Public Attributes | Protected Member Functions | Private Types
PLearn::EqualScalarVariable Class Reference

A scalar var; equal 1 if input1==input2, 0 otherwise. More...

#include <EqualScalarVariable.h>

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List of all members.

Public Member Functions

 EqualScalarVariable ()
 Default constructor for persistence.
 EqualScalarVariable (Variable *input1, Variable *input2)
virtual string classname () const
virtual OptionListgetOptionList () const
virtual OptionMapgetOptionMap () const
virtual RemoteMethodMapgetRemoteMethodMap () const
virtual EqualScalarVariabledeepCopy (CopiesMap &copies) const
virtual void build ()
 Post-constructor.
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

static string _classname_ ()
 EqualScalarVariable.
static OptionList_getOptionList_ ()
static RemoteMethodMap_getRemoteMethodMap_ ()
static Object_new_instance_for_typemap_ ()
static bool _isa_ (const Object *o)
static void _static_initialize_ ()
static const PPathdeclaringFile ()

Static Public Attributes

static StaticInitializer _static_initializer_

Protected Member Functions

void build_ ()
 This does the actual building.

Private Types

typedef BinaryVariable inherited

Detailed Description

A scalar var; equal 1 if input1==input2, 0 otherwise.

Definition at line 53 of file EqualScalarVariable.h.


Member Typedef Documentation

Reimplemented from PLearn::BinaryVariable.

Definition at line 55 of file EqualScalarVariable.h.


Constructor & Destructor Documentation

PLearn::EqualScalarVariable::EqualScalarVariable ( ) [inline]

Default constructor for persistence.

Definition at line 59 of file EqualScalarVariable.h.

{}
PLearn::EqualScalarVariable::EqualScalarVariable ( Variable input1,
Variable input2 
)

Definition at line 55 of file EqualScalarVariable.cc.

References build_().

    : inherited(input1, input2, input1->length(), input1->width())
{
    build_();
}

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Member Function Documentation

string PLearn::EqualScalarVariable::_classname_ ( ) [static]

EqualScalarVariable.

Reimplemented from PLearn::BinaryVariable.

Definition at line 53 of file EqualScalarVariable.cc.

OptionList & PLearn::EqualScalarVariable::_getOptionList_ ( ) [static]

Reimplemented from PLearn::BinaryVariable.

Definition at line 53 of file EqualScalarVariable.cc.

RemoteMethodMap & PLearn::EqualScalarVariable::_getRemoteMethodMap_ ( ) [static]

Reimplemented from PLearn::BinaryVariable.

Definition at line 53 of file EqualScalarVariable.cc.

bool PLearn::EqualScalarVariable::_isa_ ( const Object o) [static]

Reimplemented from PLearn::BinaryVariable.

Definition at line 53 of file EqualScalarVariable.cc.

Object * PLearn::EqualScalarVariable::_new_instance_for_typemap_ ( ) [static]

Reimplemented from PLearn::Object.

Definition at line 53 of file EqualScalarVariable.cc.

StaticInitializer EqualScalarVariable::_static_initializer_ & PLearn::EqualScalarVariable::_static_initialize_ ( ) [static]

Reimplemented from PLearn::BinaryVariable.

Definition at line 53 of file EqualScalarVariable.cc.

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

Implements PLearn::Variable.

Definition at line 94 of file EqualScalarVariable.cc.

{}
void PLearn::EqualScalarVariable::build ( ) [virtual]

Post-constructor.

The normal implementation 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::BinaryVariable.

Definition at line 62 of file EqualScalarVariable.cc.

References PLearn::BinaryVariable::build(), and build_().

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void PLearn::EqualScalarVariable::build_ ( ) [protected]

This does the actual building.

Reimplemented from PLearn::BinaryVariable.

Definition at line 69 of file EqualScalarVariable.cc.

References PLearn::BinaryVariable::input2, and PLERROR.

Referenced by build(), and EqualScalarVariable().

{
    if(input2 && !input2->isScalar())
        PLERROR("IsSmallerVariable EqualScalarVariable(Variable* input1, Variable* input2) input2 must be a scalar");
}

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string PLearn::EqualScalarVariable::classname ( ) const [virtual]

Reimplemented from PLearn::Object.

Definition at line 53 of file EqualScalarVariable.cc.

static const PPath& PLearn::EqualScalarVariable::declaringFile ( ) [inline, static]

Reimplemented from PLearn::BinaryVariable.

Definition at line 62 of file EqualScalarVariable.h.

:
    void build_();
EqualScalarVariable * PLearn::EqualScalarVariable::deepCopy ( CopiesMap copies) const [virtual]

Reimplemented from PLearn::BinaryVariable.

Definition at line 53 of file EqualScalarVariable.cc.

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

compute output given input

Implements PLearn::Variable.

Definition at line 85 of file EqualScalarVariable.cc.

References PLearn::fast_exact_is_equal(), i, PLearn::BinaryVariable::input1, PLearn::BinaryVariable::input2, PLearn::Variable::nelems(), and PLearn::Variable::valuedata.

{
    real eqv = input2->valuedata[0];
    for(int i=0; i<nelems(); i++)
        valuedata[i] = (fast_exact_is_equal(input1->valuedata[i], eqv));
}

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OptionList & PLearn::EqualScalarVariable::getOptionList ( ) const [virtual]

Reimplemented from PLearn::Object.

Definition at line 53 of file EqualScalarVariable.cc.

OptionMap & PLearn::EqualScalarVariable::getOptionMap ( ) const [virtual]

Reimplemented from PLearn::Object.

Definition at line 53 of file EqualScalarVariable.cc.

RemoteMethodMap & PLearn::EqualScalarVariable::getRemoteMethodMap ( ) const [virtual]

Reimplemented from PLearn::Object.

Definition at line 53 of file EqualScalarVariable.cc.

void PLearn::EqualScalarVariable::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 76 of file EqualScalarVariable.cc.

References PLearn::BinaryVariable::input1, PLearn::Var::length(), and PLearn::Var::width().

{
    if (input1) {
        l = input1->length();
        w = input1->width();
    } else
        l = w = 0;
}

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

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

Reimplemented from PLearn::Variable.

Definition at line 96 of file EqualScalarVariable.cc.

{}

Member Data Documentation

Reimplemented from PLearn::BinaryVariable.

Definition at line 62 of file EqualScalarVariable.h.


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