PLearn::SDBVMField Class Reference

#include <SDBVMat.h>

Inheritance diagram for PLearn::SDBVMField:

[legend]Collaboration diagram for PLearn::SDBVMField:

[legend]List of all members.

Public Member Functions
	SDBVMField (real missing_values_mapping=MISSING_VALUE, VMField::FieldType field_type=VMField::UnknownType)
	Constructor: specifies the mapping for missing values.
virtual void	convertField (const SDBWithStats &sdb, const Row &theRow, const Vec &outputField) const =0
virtual int	fieldWidth () const =0
	Width that the field occupies in the VMat.
VMField::FieldType	fieldType () const
bool	isContinuous () const
bool	isDiscrGeneral () const
bool	isDiscrMonotonic () const
bool	isDiscrFloat () const
bool	isDate () const
virtual SDBVMOutputCoding	getOutputCoding () const
Protected Member Functions
void	convertMissing (const Vec &output) const
	Replace all MISSING_VALUEs in output vector by missing_values_mapping_.
Protected Attributes
real	missing_values_mapping_
VMField::FieldType	field_type_

---

Detailed Description

Base class for preprocessing SDB==>VMatrix

This class provides basic functionality for handling generic functional transformation between SimpleDB field(s) and VMatrix segments. (A segment is defined as a part of a VMatrix row, consisting of one or more columns).

Definition at line 152 of file SDBVMat.h.

---

Constructor & Destructor Documentation

PLearn::SDBVMField::SDBVMField (  real  missing_values_mapping = MISSING_VALUE, VMField::FieldType  field_type = VMField::UnknownType )  [inline]

Constructor: specifies the mapping for missing values. Definition at line 156 of file SDBVMat.h. References field_type_, and missing_values_mapping_.

---

Member Function Documentation

virtual void PLearn::SDBVMField::convertField (  const SDBWithStats &  sdb, const Row &  theRow, const Vec &  outputField )  const [pure virtual]

Given a database row, convert the appropriate parts to a (preallocated) output vector of the correct width (given by fieldWidth). Replace MISSING_VALUEs by missing_values_mapping. Implemented in PLearn::SDBVMFieldAsIs, PLearn::SDBVMFieldNormalize, PLearn::SDBVMFieldDivSigma, PLearn::SDBVMFieldAffine, PLearn::SDBVMFieldPosAffine, PLearn::SDBVMFieldSignedPower, PLearn::SDBVMFieldFunc1, PLearn::SDBVMFieldFunc2, PLearn::SDBVMFieldDate, PLearn::SDBVMFieldDay, PLearn::SDBVMFieldMonths, PLearn::SDBVMFieldDateDiff, PLearn::SDBVMFieldDiscrete, PLearn::SDBVMFieldDateGreater, PLearn::SDBVMFieldICBCTargets, and PLearn::SDBVMFieldICBCClassification.

void PLearn::SDBVMField::convertMissing (  const Vec &  output  )  const [protected]

Replace all MISSING_VALUEs in output vector by missing_values_mapping_. Definition at line 285 of file SDBVMat.cc. References PLearn::is_missing(), PLearn::TVec< T >::length(), missing_values_mapping_, and PLearn::Vec.

VMField::FieldType PLearn::SDBVMField::fieldType (   )  const [inline]

Query the kind of mapping performed by each field DiscrGeneral: arbitrary discrete values DiscrMonotonic: monotonic discrete values DiscrFloat: monotonic + some exceptions Definition at line 177 of file SDBVMat.h. References field_type_. Referenced by PLearn::SDBVMatrix::appendField().

virtual int PLearn::SDBVMField::fieldWidth (   )  const [pure virtual]

Width that the field occupies in the VMat. Implemented in PLearn::SDBVMFieldAsIs, PLearn::SDBVMFieldNormalize, PLearn::SDBVMFieldDivSigma, PLearn::SDBVMFieldAffine, PLearn::SDBVMFieldPosAffine, PLearn::SDBVMFieldSignedPower, PLearn::SDBVMFieldFunc1, PLearn::SDBVMFieldFunc2, PLearn::SDBVMFieldDate, PLearn::SDBVMFieldDay, PLearn::SDBVMFieldMonths, PLearn::SDBVMFieldDateDiff, PLearn::SDBVMFieldDiscrete, PLearn::SDBVMFieldDateGreater, PLearn::SDBVMFieldICBCTargets, PLearn::SDBVMFieldHasClaim, PLearn::SDBVMFieldSumClaims, and PLearn::SDBVMFieldICBCClassification. Referenced by PLearn::SDBVMatrix::appendField().

SDBVMOutputCoding PLearn::SDBVMField::getOutputCoding (   )  const [virtual]

Reimplemented in PLearn::SDBVMFieldDiscrete. Definition at line 280 of file SDBVMat.cc. References PLearn::SDBVMUnknownCoding.

bool PLearn::SDBVMField::isContinuous (   )  const [inline]

Definition at line 179 of file SDBVMat.h. References field_type_.

bool PLearn::SDBVMField::isDate (   )  const [inline]

Definition at line 183 of file SDBVMat.h. References field_type_.

bool PLearn::SDBVMField::isDiscrFloat (   )  const [inline]

Definition at line 182 of file SDBVMat.h. References field_type_.

bool PLearn::SDBVMField::isDiscrGeneral (   )  const [inline]

Definition at line 180 of file SDBVMat.h. References field_type_.

bool PLearn::SDBVMField::isDiscrMonotonic (   )  const [inline]

Definition at line 181 of file SDBVMat.h. References field_type_.

---

Member Data Documentation

VMField::FieldType PLearn::SDBVMField::field_type_ [protected]

Definition at line 193 of file SDBVMat.h. Referenced by fieldType(), isContinuous(), isDate(), isDiscrFloat(), isDiscrGeneral(), isDiscrMonotonic(), and SDBVMField().

real PLearn::SDBVMField::missing_values_mapping_ [protected]

Definition at line 192 of file SDBVMat.h. Referenced by convertMissing(), and SDBVMField().

---

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

• SDBVMat.h
• SDBVMat.cc

---