Mem_Iterator Class Reference

A class which fetches the samples in bootstrap manner in memort way. More...

#include <bootstrap.h>

Public Member Functions
	Mem_Iterator (const vector< int > &pids, const vector< int > &cohort_indexes, float p_sample_ratio, int p_sample_per_pid, int seed)
	The Ctor.
void	fetch_selection (vector< int > &indexes) const
	Inline function to fetch indexes.
void	fetch_selection_external (vector< int > &indexes) const
	external function to fetch indexes
void	fetch_selection (mt19937 &rd_gen, vector< int > &indexes) const
	Inline function to fetch indexes - for multi thread - provide random generator.
void	fetch_selection_external (mt19937 &rd_gen, vector< int > &indexes) const
	external function to fetch indexes - for multi thread - provide random generator

Data Fields
float	sample_ratio
	the sample ratio of the patients out of all patients in each bootstrap
int	sample_per_pid
	how many samples to take for each patients. 0 - means no sampling take all sample for patient

Detailed Description

A class which fetches the samples in bootstrap manner in memort way.

The object selects indexes in each bootstrap fetches the samples in randomization by index vector in the future - choose dynamically the faster Iterator to use Lazy_Iterator or Mem_Iterator

Constructor & Destructor Documentation

Mem_Iterator()

Mem_Iterator::Mem_Iterator	(	const vector< int > &	pids,
		const vector< int > &	cohort_indexes,
		float	p_sample_ratio,
		int	p_sample_per_pid,
		int	seed
	)

The Ctor.

Parameters

pids	a reference to pids vector - without selection
cohort_indexes	a reference to selected indexes from cohort filter to bootstrap indexes from
p_sample_ratio	a sample ratio parameter for the bootstrap (0-1]
p_sample_per_pid	a sample count per patient (num of threads or the bootstrap loop count).
seed	if 0 will use random device to select seed for randomization

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

• Internal/MedStat/MedStat/bootstrap.h
• Internal/MedStat/MedStat/bootstrap.cpp