xgboost::FeatureMap Class Reference

Feature map data structure to help text model dump. TODO(tqchen) consider make it even more lightweight. More...

#include <feature_map.h>

Collaboration diagram for xgboost::FeatureMap:

Public Types
enum	Type {   kIndicator = 0 , kQuantitive = 1 , kInteger = 2 , kFloat = 3 ,   kCategorical = 4 }
	type of feature maps More...

Public Member Functions
void	LoadText (std::istream &is)
	load feature map from input stream More...
void	PushBack (int fid, const char *fname, const char *ftype)
	push back feature map. More...
void	Clear ()
	clear the feature map More...
size_t	Size () const
const char *	Name (size_t idx) const
Type	TypeOf (size_t idx) const

Detailed Description

Feature map data structure to help text model dump. TODO(tqchen) consider make it even more lightweight.

Member Enumeration Documentation

Type

enum xgboost::FeatureMap::Type

type of feature maps

Enumerator
kIndicator
kQuantitive
kInteger
kFloat
kCategorical

Member Function Documentation

Clear()

void xgboost::FeatureMap::Clear ( )

inline

clear the feature map

LoadText()

void xgboost::FeatureMap::LoadText ( std::istream &  is )

inline

load feature map from input stream

Parameters

is	Input text stream

Name()

const char* xgboost::FeatureMap::Name ( size_t  idx ) const

inline

Returns

name of specific feature

PushBack()

void xgboost::FeatureMap::PushBack ( int  fid, const char *  fname, const char *  ftype  )

inline

push back feature map.

Parameters

fid	The feature index.
fname	The feature name.
ftype	The feature type.

Size()

size_t xgboost::FeatureMap::Size ( ) const

inline

Returns

number of known features

TypeOf()

Type xgboost::FeatureMap::TypeOf ( size_t  idx ) const

inline

Returns

type of specific feature

---

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

• /home/docs/checkouts/readthedocs.org/user_builds/xgboost/checkouts/stable/include/xgboost/feature_map.h