PLearn::SDBVMFieldAffine Class Reference

Apply an affine transformation to the field: y = a*x+b. More...

#include <SDBVMat.h>

Inheritance diagram for PLearn::SDBVMFieldAffine:

[legend]Collaboration diagram for PLearn::SDBVMFieldAffine:

[legend]List of all members.

Public Member Functions
	SDBVMFieldAffine (SDBVMSource source, real a, real b=0.0, real missing_values_mapping=MISSING_VALUE)
virtual void	convertField (const SDBWithStats &sdb, const Row &row, const Vec &output) const
virtual int	fieldWidth () const
	Width that the field occupies in the VMat.
Protected Attributes
real	a_
real	b_
Private Types
typedef SDBVMFieldSource1	inherited

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Detailed Description

Apply an affine transformation to the field: y = a*x+b.

Definition at line 383 of file SDBVMat.h.

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Member Typedef Documentation

typedef SDBVMFieldSource1 PLearn::SDBVMFieldAffine::inherited [private]

Reimplemented from PLearn::SDBVMFieldSource1. Definition at line 385 of file SDBVMat.h.

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Constructor & Destructor Documentation

PLearn::SDBVMFieldAffine::SDBVMFieldAffine (  SDBVMSource  source, real  a, real  b = 0.0, real  missing_values_mapping = MISSING_VALUE )  [inline]

Definition at line 388 of file SDBVMat.h.

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Member Function Documentation

void PLearn::SDBVMFieldAffine::convertField (  const SDBWithStats &  sdb, const Row &  row, const Vec &  output )  const [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. Implements PLearn::SDBVMField. Definition at line 349 of file SDBVMat.cc. References a_, b_, PLearn::SDBVMSource::getValue(), and PLearn::Vec.

int PLearn::SDBVMFieldAffine::fieldWidth (   )  const [virtual]

Width that the field occupies in the VMat. Implements PLearn::SDBVMField. Definition at line 360 of file SDBVMat.cc.

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Member Data Documentation

real PLearn::SDBVMFieldAffine::a_ [protected]

Definition at line 398 of file SDBVMat.h. Referenced by convertField().

real PLearn::SDBVMFieldAffine::b_ [protected]

Definition at line 398 of file SDBVMat.h. Referenced by convertField().

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

• SDBVMat.h
• SDBVMat.cc

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