PLearn::SDBVMFieldRemapIntervals Class Reference

#include <SDBVMat.h>

Inheritance diagram for PLearn::SDBVMFieldRemapIntervals:

[legend]Collaboration diagram for PLearn::SDBVMFieldRemapIntervals:

[legend]List of all members.

Public Member Functions
	SDBVMFieldRemapIntervals (SDBVMSource source, const string &mappings, real other_values_mapping=MISSING_VALUE, real missing_values_mapping=MISSING_VALUE, SDBVMOutputCoding oc=SDBVMNumeric, VMField::FieldType ft=VMField::DiscrGeneral)
virtual real	getDiscreteValue (const SDBWithStats &sdb, const Row &row) const
	Perform the actual remapping.
Static Public Member Functions
void	getIntervals (const string &mappings, bool &all_int, real &max_of_map, Vec &intervals_x, Vec &intervals_y)
Protected Attributes
Vec	intervals_x_
Vec	intervals_y_
real	other_values_mapping_
Private Types
typedef SDBVMFieldDiscrete	inherited

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Detailed Description

A field that remaps intervals on the reals onto discrete integer values. The format of the "mappings" argument is: "y_0 x_1 y_1 x_2 y_2 ... x_N y_N", where the "x_i" are cut-points for X, with for the value y_i obtained when x_i <= X < x_{i+1}, and y_0 obtained for X<x_1, and y_N obtained for X >= y_N. It is required that x_i < x_{i+1}.

Definition at line 815 of file SDBVMat.h.

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Member Typedef Documentation

typedef SDBVMFieldDiscrete PLearn::SDBVMFieldRemapIntervals::inherited [private]

Reimplemented from PLearn::SDBVMFieldDiscrete. Definition at line 817 of file SDBVMat.h. Referenced by SDBVMFieldRemapIntervals().

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Constructor & Destructor Documentation

PLearn::SDBVMFieldRemapIntervals::SDBVMFieldRemapIntervals (  SDBVMSource  source, const string &  mappings, real  other_values_mapping = MISSING_VALUE, real  missing_values_mapping = MISSING_VALUE, SDBVMOutputCoding  oc = SDBVMNumeric, VMField::FieldType  ft = VMField::DiscrGeneral )

Definition at line 868 of file SDBVMat.cc. References getIntervals(), inherited, intervals_x_, and intervals_y_.

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Member Function Documentation

real PLearn::SDBVMFieldRemapIntervals::getDiscreteValue (  const SDBWithStats &  sdb, const Row &  row )  const [virtual]

Perform the actual remapping. Implements PLearn::SDBVMFieldDiscrete. Definition at line 886 of file SDBVMat.cc. References PLearn::binary_search(), PLearn::SDBVMSource::getValue(), intervals_x_, intervals_y_, and PLearn::FieldValue::isMissing().

void PLearn::SDBVMFieldRemapIntervals::getIntervals (  const string &  mappings, bool &  all_int, real &  max_of_map, Vec &  intervals_x, Vec &  intervals_y )  [static]

This parses the remapping string and returns a map. Whether the target values are all non-negative integers is set in all_int. The maximum target value in the map is set into max_of_map. The intervals are returned in intervals_x and intervals_y Definition at line 820 of file SDBVMat.cc. References PLERROR, PLearn::TVec< T >::resize(), and PLearn::Vec. Referenced by SDBVMFieldRemapIntervals().

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Member Data Documentation

Vec PLearn::SDBVMFieldRemapIntervals::intervals_x_ [protected]

Definition at line 840 of file SDBVMat.h. Referenced by getDiscreteValue(), and SDBVMFieldRemapIntervals().

Vec PLearn::SDBVMFieldRemapIntervals::intervals_y_ [protected]

Definition at line 841 of file SDBVMat.h. Referenced by getDiscreteValue(), and SDBVMFieldRemapIntervals().

real PLearn::SDBVMFieldRemapIntervals::other_values_mapping_ [protected]

Definition at line 842 of file SDBVMat.h.

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

• SDBVMat.h
• SDBVMat.cc

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