TMVA::Experimental::Internal::RChunkLoader< Args > Class Template Reference

template<typename... Args>
class TMVA::Experimental::Internal::RChunkLoader< Args >

Definition at line 114 of file RChunkLoader.hxx.

Public Member Functions
	RChunkLoader (const std::string &treeName, const std::string &fileName, const std::size_t chunkSize, const std::vector< std::string > &cols, const std::string &filters="", const std::vector< std::size_t > &vecSizes={}, const float vecPadding=0.0)
	Constructor for the RChunkLoader.
std::pair< std::size_t, std::size_t >	LoadChunk (TMVA::Experimental::RTensor< float > &chunkTensor, const std::size_t currentRow)
	Load a chunk of data using the RChunkLoaderFunctor.

Private Member Functions
std::pair< std::size_t, std::size_t >	loadFiltered (ROOT::RDataFrame &x_rdf, RChunkLoaderFunctor< Args... > &func)
	Add filters to the RDataFrame and load a chunk of data.
std::pair< std::size_t, std::size_t >	loadNonFiltered (ROOT::RDataFrame &x_rdf, RChunkLoaderFunctor< Args... > &func)
	Loop over the events in the dataframe untill either the end of the dataframe is reached, or a full chunk is loaded.

Private Attributes
std::size_t	fChunkSize
std::vector< std::string >	fCols
std::string	fFileName
std::string	fFilters
std::size_t	fNumColumns
std::string	fTreeName
std::size_t	fVecPadding
std::vector< std::size_t >	fVecSizes

#include <TMVA/RChunkLoader.hxx>

Constructor & Destructor Documentation

RChunkLoader()

template<typename... Args>

TMVA::Experimental::Internal::RChunkLoader< Args >::RChunkLoader ( const std::string & treeName, const std::string & fileName, const std::size_t chunkSize, const std::vector< std::string > & cols, const std::string & filters = "", const std::vector< std::size_t > & vecSizes = {}, const float vecPadding = 0.0 )

inline

Constructor for the RChunkLoader.

Parameters

treeName
fileName
chunkSize
cols
filters
vecSizes
vecPadding

Definition at line 137 of file RChunkLoader.hxx.

Member Function Documentation

LoadChunk()

template<typename... Args>

std::pair< std::size_t, std::size_t > TMVA::Experimental::Internal::RChunkLoader< Args >::LoadChunk ( TMVA::Experimental::RTensor< float > & chunkTensor, const std::size_t currentRow )

inline

Load a chunk of data using the RChunkLoaderFunctor.

Parameters

chunkTensor
currentRow

Returns

A pair of size_t defining the number of events processed and how many passed all filters

Definition at line 156 of file RChunkLoader.hxx.

loadFiltered()

template<typename... Args>

std::pair< std::size_t, std::size_t > TMVA::Experimental::Internal::RChunkLoader< Args >::loadFiltered ( ROOT::RDataFrame & x_rdf, RChunkLoaderFunctor< Args... > & func )

inlineprivate

Add filters to the RDataFrame and load a chunk of data.

Parameters

x_rdf
func

Returns

A pair of size_t defining the number of events processed and how many passed all filters

Definition at line 184 of file RChunkLoader.hxx.

loadNonFiltered()

template<typename... Args>

std::pair< std::size_t, std::size_t > TMVA::Experimental::Internal::RChunkLoader< Args >::loadNonFiltered ( ROOT::RDataFrame & x_rdf, RChunkLoaderFunctor< Args... > & func )

inlineprivate

Loop over the events in the dataframe untill either the end of the dataframe is reached, or a full chunk is loaded.

Parameters

x_rdf
func

Returns

A pair of size_t defining the number of events processed and how many passed all filters

Definition at line 210 of file RChunkLoader.hxx.

Member Data Documentation

fChunkSize

template<typename... Args>

std::size_t TMVA::Experimental::Internal::RChunkLoader< Args >::fChunkSize

private

Definition at line 119 of file RChunkLoader.hxx.

fCols

template<typename... Args>

std::vector<std::string> TMVA::Experimental::Internal::RChunkLoader< Args >::fCols

private

Definition at line 122 of file RChunkLoader.hxx.

fFileName

template<typename... Args>

std::string TMVA::Experimental::Internal::RChunkLoader< Args >::fFileName

private

Definition at line 118 of file RChunkLoader.hxx.

fFilters

template<typename... Args>

std::string TMVA::Experimental::Internal::RChunkLoader< Args >::fFilters

private

Definition at line 123 of file RChunkLoader.hxx.

fNumColumns

template<typename... Args>

std::size_t TMVA::Experimental::Internal::RChunkLoader< Args >::fNumColumns

private

Definition at line 120 of file RChunkLoader.hxx.

fTreeName

template<typename... Args>

std::string TMVA::Experimental::Internal::RChunkLoader< Args >::fTreeName

private

Definition at line 117 of file RChunkLoader.hxx.

fVecPadding

template<typename... Args>

std::size_t TMVA::Experimental::Internal::RChunkLoader< Args >::fVecPadding

private

Definition at line 126 of file RChunkLoader.hxx.

fVecSizes

template<typename... Args>

std::vector<std::size_t> TMVA::Experimental::Internal::RChunkLoader< Args >::fVecSizes

private

Definition at line 125 of file RChunkLoader.hxx.