mbl_random_n_from_m Class Reference

Class to generate arrays of n integers chosen without replacement from [0,m-1]. More...

#include <mbl_random_n_from_m.h>

List of all members.

Public Member Functions
	mbl_random_n_from_m ()
	Dflt ctor.
void	reseed (long new_seed)
	Set seed of random number generator.
void	choose_n_from_m (vcl_vector< unsigned > &chosen, unsigned int n, unsigned int m)
	Select n integers from range [0,m-1], without replacement.
void	choose_n_from_m (vcl_vector< unsigned > &chosen, vcl_vector< unsigned > &not_chosen, unsigned int n, unsigned int m)
	Select n integers from range [0,m-1], without replacement.
void	choose_n_from_m (vcl_vector< int > &chosen, unsigned int n, unsigned int m)
	Select n integers from range [0,m-1], without replacement.
void	choose_n_from_m (vcl_vector< int > &chosen, vcl_vector< int > &not_chosen, unsigned int n, unsigned int m)
	Select n integers from range [0,m-1], without replacement.
Private Attributes
vnl_random	mz_random_
vcl_vector< bool >	used_

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Detailed Description

Class to generate arrays of n integers chosen without replacement from [0,m-1].

Definition at line 12 of file mbl_random_n_from_m.h.

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Constructor & Destructor Documentation

mbl_random_n_from_m::mbl_random_n_from_m

(

)

Dflt ctor.

Definition at line 10 of file mbl_random_n_from_m.cxx.

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Member Function Documentation

void mbl_random_n_from_m::choose_n_from_m	(	vcl_vector< unsigned > &	chosen,
		unsigned int	n,
		unsigned int	m
	)

Select n integers from range [0,m-1], without replacement.

ie all different n is required to be <= m; otherwise, the function abort()s. But n might be 0, in which case an empty list is returned.

Return values:

chosen

Array [0,n-1] of chosen elements

Definition at line 20 of file mbl_random_n_from_m.cxx.

void mbl_random_n_from_m::choose_n_from_m	(	vcl_vector< unsigned > &	chosen,
		vcl_vector< unsigned > &	not_chosen,
		unsigned int	n,
		unsigned int	m
	)

Select n integers from range [0,m-1], without replacement.

ie all different n is required to be <= m; otherwise, the function abort()s. But n might be 0, in which case an empty list is returned.

Return values:

chosen	Array [0,n-1] of chosen elements
not_chosen	Array[0,m-n-1] of not chosen elements

Definition at line 56 of file mbl_random_n_from_m.cxx.

void mbl_random_n_from_m::choose_n_from_m	(	vcl_vector< int > &	chosen,
		unsigned int	n,
		unsigned int	m
	)

Select n integers from range [0,m-1], without replacement.

ie all different n is required to be <= m; otherwise, the function abort()s. But n might be 0, in which case an empty list is returned.

Return values:

chosen

Array [0,n-1] of chosen elements

Definition at line 72 of file mbl_random_n_from_m.cxx.

void mbl_random_n_from_m::choose_n_from_m	(	vcl_vector< int > &	chosen,
		vcl_vector< int > &	not_chosen,
		unsigned int	n,
		unsigned int	m
	)

Select n integers from range [0,m-1], without replacement.

ie all different n is required to be <= m; otherwise, the function abort()s. But n might be 0, in which case an empty list is returned.

Return values:

chosen	Array [0,n-1] of chosen elements
not_chosen	Array[0,m-n-1] of not chosen elements

Definition at line 108 of file mbl_random_n_from_m.cxx.

void mbl_random_n_from_m::reseed

(

long

new_seed

)

Set seed of random number generator.

Definition at line 14 of file mbl_random_n_from_m.cxx.

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Member Data Documentation

vnl_random mbl_random_n_from_m::mz_random_ [private]

Definition at line 15 of file mbl_random_n_from_m.h.

vcl_vector<bool> mbl_random_n_from_m::used_ [private]

Definition at line 16 of file mbl_random_n_from_m.h.

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

• contrib/mul/mbl/mbl_random_n_from_m.h
• contrib/mul/mbl/mbl_random_n_from_m.cxx