SubDataset Class Reference

Wraps another Dataset and provides a view to a subset of its features and events. More...

#include <Dataset.h>

Inheritance diagram for SubDataset:

Collaboration diagram for SubDataset:

Public Member Functions
	SubDataset (const GeneralOptions &general_options, const std::vector< bool > &events, Dataset &dataset)
	Constructs a new SubDataset holding a reference to the wrapped Dataset. More...
virtual unsigned int	getNumberOfFeatures () const override
	Returns the number of features in this dataset, so the size of the given subset of the variables.
virtual unsigned int	getNumberOfSpectators () const override
	Returns the number of spectators in this dataset, so the size of the given subset of the spectators.
virtual unsigned int	getNumberOfEvents () const override
	Returns the number of events in the wrapped dataset.
virtual void	loadEvent (unsigned int iEvent) override
	Load the event number iEvent from the wrapped dataset. More...
virtual std::vector< float >	getFeature (unsigned int iFeature) override
	Returns all values of one feature in a std::vector<float> of the wrapped dataset. More...
virtual std::vector< float >	getSpectator (unsigned int iSpectator) override
	Returns all values of one spectator in a std::vector<float> of the wrapped dataset. More...
virtual float	getSignalFraction ()
	Returns the signal fraction of the whole sample.
virtual unsigned int	getFeatureIndex (const std::string &feature)
	Return index of feature with the given name. More...
virtual unsigned int	getSpectatorIndex (const std::string &spectator)
	Return index of spectator with the given name. More...
virtual std::vector< float >	getWeights ()
	Returns all weights.
virtual std::vector< float >	getTargets ()
	Returns all targets.
virtual std::vector< bool >	getSignals ()
	Returns all is Signals.

Public Attributes
GeneralOptions	m_general_options
	GeneralOptions passed to this dataset.
std::vector< float >	m_input
	Contains all feature values of the currently loaded event.
std::vector< float >	m_spectators
	Contains all spectators values of the currently loaded event.
float	m_weight
	Contains the weight of the currently loaded event.
float	m_target
	Contains the target value of the currently loaded event.
bool	m_isSignal
	Defines if the currently loaded event is signal or background.

Private Attributes
bool	m_use_event_indices = false
	Use only a subset of the wrapped dataset events.
std::vector< unsigned int >	m_feature_indices
	Mapping from the position of a feature in the given subset to its position in the wrapped dataset.
std::vector< unsigned int >	m_spectator_indices
	Mapping from the position of a spectator in the given subset to its position in the wrapped dataset.
std::vector< unsigned int >	m_event_indices
	Mapping from the position of a event in the given subset to its position in the wrapped dataset.
Dataset &	m_dataset
	Reference to the wrapped dataset.

Detailed Description

Wraps another Dataset and provides a view to a subset of its features and events.

Used by the Combination method which can combine multiple methods with possibly different variables

Definition at line 234 of file Dataset.h.

Constructor & Destructor Documentation

SubDataset()

SubDataset	(	const GeneralOptions &	general_options,
		const std::vector< bool > &	events,
		Dataset &	dataset
	)

Constructs a new SubDataset holding a reference to the wrapped Dataset.

Parameters

general_options	which defines e.g. a subset of variables of the original dataset
events	subset of events which are provided by this Dataset
dataset	reference to the wrapped Dataset

Definition at line 186 of file Dataset.cc.

Member Function Documentation

getFeature()

std::vector< float > getFeature ( unsigned int  iFeature )

overridevirtual

Returns all values of one feature in a std::vector<float> of the wrapped dataset.

Parameters

iFeature

the position of the feature to return in the given subset

Reimplemented from Dataset.

Definition at line 245 of file Dataset.cc.

getFeatureIndex()

unsigned int getFeatureIndex ( const std::string &  feature )

virtualinherited

Return index of feature with the given name.

Parameters

feature

name of the feature

Definition at line 50 of file Dataset.cc.

getSpectator()

std::vector< float > getSpectator ( unsigned int  iSpectator )

overridevirtual

Returns all values of one spectator in a std::vector<float> of the wrapped dataset.

Parameters

iSpectator

the position of the spectator to return in the given subset

Reimplemented from Dataset.

Definition at line 259 of file Dataset.cc.

getSpectatorIndex()

unsigned int getSpectatorIndex ( const std::string &  spectator )

virtualinherited

Return index of spectator with the given name.

Parameters

spectator

name of the spectator

Definition at line 62 of file Dataset.cc.

loadEvent()

void loadEvent ( unsigned int  iEvent )

overridevirtual

Load the event number iEvent from the wrapped dataset.

Parameters

iEvent

event number to load

Implements Dataset.

Definition at line 225 of file Dataset.cc.

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

• mva/interface/include/Dataset.h
• mva/interface/src/Dataset.cc