compressor_generator.h File Reference

#include <map>
#include <random>
#include <set>
#include <utility>
#include <vector>
#include "RtypesCore.h"

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Functions
UShort_t	residesIn (Float_t raw, std::vector< Float_t > *dict)
Float_t	approx (std::vector< UShort_t > *order, std::vector< Float_t > *dict, std::vector< size_t > *cnt, Int_t n_entries, std::default_random_engine &generator, std::normal_distribution< double > &distribution, size_t maxNumClusters)
Int_t	newLoc (std::vector< Int_t > *loc_vec, std::vector< std::vector< Int_t >> *loc_vec_vec)
void	removeDiff (Float_t distance, Float_t min, std::map< Float_t, std::set< Float_t >> *distance_min_set_map)
void	addDiff (Float_t distance, Float_t min, std::map< Float_t, std::set< Float_t >> *distance_min_set_map)

Function Documentation

void addDiff	(	Float_t	distance,
		Float_t	min,
		std::map< Float_t, std::set< Float_t >> *	distance_min_set_map
	)

Float_t approx	(	std::vector< UShort_t > *	order,
		std::vector< Float_t > *	dict,
		std::vector< size_t > *	cnt,
		Int_t	n_entries,
		std::default_random_engine &	generator,
		std::normal_distribution< double > &	distribution,
		size_t	maxNumClusters
	)

approx() compresses data generated by a normal distribution and returns the maximum absolute difference between the actual and approximated data.

Definition at line 50 of file compressor_generator.h.

View newest version in sPHENIX GitHub at line 50 of file compressor_generator.h

References addDiff(), double(), index, j, loc, Acts::UnitConstants::min, newLoc(), next, removeDiff(), and physmon_simulation::s.

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Int_t newLoc	(	std::vector< Int_t > *	loc_vec,
		std::vector< std::vector< Int_t >> *	loc_vec_vec
	)

Definition at line 148 of file compressor_generator.h.

View newest version in sPHENIX GitHub at line 148 of file compressor_generator.h

References loc.

void removeDiff	(	Float_t	distance,
		Float_t	min,
		std::map< Float_t, std::set< Float_t >> *	distance_min_set_map
	)

UShort_t residesIn	(	Float_t	raw,
		std::vector< Float_t > *	dict
	)

Compression algorithm for use in the CMSSW and sPHENIX projects. Using 16-bit short integers to store 32-bit floating-point values. Author: fishy.nosp@m.u@ii.nosp@m.i.org.nosp@m..tw June 8, 2021

Definition at line 17 of file compressor_generator.h.

View newest version in sPHENIX GitHub at line 17 of file compressor_generator.h

References Acts::Test::at, and i.

Referenced by DSTCompressor::compressPhi(), and DSTCompressor::compressZ().

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