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PLearn 0.1
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#include <EpanechnikovKernel.h>


Public Member Functions | |
| EpanechnikovKernel () | |
| Default constructor. | |
| virtual void | build () |
| Simply calls inherited::build() then build_(). | |
| virtual void | makeDeepCopyFromShallowCopy (CopiesMap &copies) |
| Transforms a shallow copy into a deep copy. | |
| virtual string | classname () const |
| virtual OptionList & | getOptionList () const |
| virtual OptionMap & | getOptionMap () const |
| virtual RemoteMethodMap & | getRemoteMethodMap () const |
| virtual EpanechnikovKernel * | deepCopy (CopiesMap &copies) const |
| virtual real | evaluate (const Vec &x1, const Vec &x2) const |
| Compute K(x1,x2). | |
Static Public Member Functions | |
| static string | _classname_ () |
| static OptionList & | _getOptionList_ () |
| static RemoteMethodMap & | _getRemoteMethodMap_ () |
| static Object * | _new_instance_for_typemap_ () |
| static bool | _isa_ (const Object *o) |
| static void | _static_initialize_ () |
| static const PPath & | declaringFile () |
Public Attributes | |
| real | gamma |
| Smoothing parameter for the Epanechnikov kernel (default=1.0) | |
Static Public Attributes | |
| static StaticInitializer | _static_initializer_ |
Static Protected Member Functions | |
| static void | declareOptions (OptionList &ol) |
| Declares this class' options. | |
Private Types | |
| typedef Kernel | inherited |
Private Member Functions | |
| void | build_ () |
| This does the actual building. | |
Definition at line 51 of file EpanechnikovKernel.h.
typedef Kernel PLearn::EpanechnikovKernel::inherited [private] |
Reimplemented from PLearn::Kernel.
Definition at line 53 of file EpanechnikovKernel.h.
| PLearn::EpanechnikovKernel::EpanechnikovKernel | ( | ) |
| string PLearn::EpanechnikovKernel::_classname_ | ( | ) | [static] |
Reimplemented from PLearn::Kernel.
Definition at line 68 of file EpanechnikovKernel.cc.
| OptionList & PLearn::EpanechnikovKernel::_getOptionList_ | ( | ) | [static] |
Reimplemented from PLearn::Kernel.
Definition at line 68 of file EpanechnikovKernel.cc.
| RemoteMethodMap & PLearn::EpanechnikovKernel::_getRemoteMethodMap_ | ( | ) | [static] |
Reimplemented from PLearn::Kernel.
Definition at line 68 of file EpanechnikovKernel.cc.
Reimplemented from PLearn::Kernel.
Definition at line 68 of file EpanechnikovKernel.cc.
| Object * PLearn::EpanechnikovKernel::_new_instance_for_typemap_ | ( | ) | [static] |
Reimplemented from PLearn::Object.
Definition at line 68 of file EpanechnikovKernel.cc.
| StaticInitializer EpanechnikovKernel::_static_initializer_ & PLearn::EpanechnikovKernel::_static_initialize_ | ( | ) | [static] |
Reimplemented from PLearn::Kernel.
Definition at line 68 of file EpanechnikovKernel.cc.
| void PLearn::EpanechnikovKernel::build | ( | ) | [virtual] |
Simply calls inherited::build() then build_().
Reimplemented from PLearn::Kernel.
Definition at line 87 of file EpanechnikovKernel.cc.
References PLearn::Kernel::build(), and build_().
{
// ### Nothing to add here, simply calls build_
inherited::build();
build_();
}

| void PLearn::EpanechnikovKernel::build_ | ( | ) | [private] |
This does the actual building.
Reimplemented from PLearn::Kernel.
Definition at line 97 of file EpanechnikovKernel.cc.
References gamma, and PLERROR.
Referenced by build().
{
if (gamma <= 0.0)
PLERROR("EpanechnikovKernel::build_: the 'gamma' option must be strictly positive");
}

| string PLearn::EpanechnikovKernel::classname | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 68 of file EpanechnikovKernel.cc.
| void PLearn::EpanechnikovKernel::declareOptions | ( | OptionList & | ol | ) | [static, protected] |
Declares this class' options.
Reimplemented from PLearn::Kernel.
Definition at line 74 of file EpanechnikovKernel.cc.
References PLearn::OptionBase::buildoption, PLearn::declareOption(), PLearn::Kernel::declareOptions(), and gamma.
{
declareOption(ol, "gamma", &EpanechnikovKernel::gamma,
OptionBase::buildoption,
"Smoothing parameter for the Epanechnikov kernel (default=1.0)");
// Now call the parent class' declareOptions
inherited::declareOptions(ol);
}

| static const PPath& PLearn::EpanechnikovKernel::declaringFile | ( | ) | [inline, static] |
Reimplemented from PLearn::Kernel.
Definition at line 102 of file EpanechnikovKernel.h.
| EpanechnikovKernel * PLearn::EpanechnikovKernel::deepCopy | ( | CopiesMap & | copies | ) | const [virtual] |
Reimplemented from PLearn::Kernel.
Definition at line 68 of file EpanechnikovKernel.cc.
Compute K(x1,x2).
Implements PLearn::Kernel.
Definition at line 106 of file EpanechnikovKernel.cc.
References gamma, and PLearn::L2distance().
{
real t = L2distance(x1,x2) / gamma;
if (t <= 1.0)
return 3 * (1-t*t) / 4;
return 0;
}

| OptionList & PLearn::EpanechnikovKernel::getOptionList | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 68 of file EpanechnikovKernel.cc.
| OptionMap & PLearn::EpanechnikovKernel::getOptionMap | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 68 of file EpanechnikovKernel.cc.
| RemoteMethodMap & PLearn::EpanechnikovKernel::getRemoteMethodMap | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 68 of file EpanechnikovKernel.cc.
| void PLearn::EpanechnikovKernel::makeDeepCopyFromShallowCopy | ( | CopiesMap & | copies | ) | [virtual] |
Transforms a shallow copy into a deep copy.
Reimplemented from PLearn::Kernel.
Definition at line 117 of file EpanechnikovKernel.cc.
References PLearn::Kernel::makeDeepCopyFromShallowCopy().
{
inherited::makeDeepCopyFromShallowCopy(copies);
}

Reimplemented from PLearn::Kernel.
Definition at line 102 of file EpanechnikovKernel.h.
Smoothing parameter for the Epanechnikov kernel (default=1.0)
Definition at line 62 of file EpanechnikovKernel.h.
Referenced by build_(), declareOptions(), and evaluate().
1.7.4