bpp::ContingencyTableGenerator Class Reference

Generate a random contingency matrix with given marginal counts. More...

#include <Bpp/Numeric/Random/ContingencyTableGenerator.h>

Collaboration diagram for bpp::ContingencyTableGenerator:

Public Member Functions
	ContingencyTableGenerator (const std::vector< size_t > &nrowt, const std::vector< size_t > &ncolt)
RowMatrix< size_t >	rcont2 (const RandomFactory &generator= *RandomTools::DEFAULT_GENERATOR)

Private Attributes
std::vector< size_t >	nrowt_
std::vector< size_t >	ncolt_
size_t	nrow_
size_t	ncol_
size_t	nrowm_
size_t	ncolm_
std::vector< size_t >	jwork_
size_t	ntot_
std::vector< double >	fact_

Detailed Description

Generate a random contingency matrix with given marginal counts.

This procedure was adapted from the original fortran code described in: Patefield, W. M. (1981) Algorithm AS159. An efficient method of generating r x c tables with given row and column totals. Applied Statistics 30, 91-97. This algorithm is the one also used in R function chisq.test for instance.

The code was adpated from file rcont.c, edited by Martin Maechler, Dec 2003, available in the R software source distribution.

Parameters

nrowt	Marginal counts.
ncolt	Marginal counts.

Returns

A random matrix of counts with the same marginals as specified.

Definition at line 71 of file ContingencyTableGenerator.h.

Constructor & Destructor Documentation

ContingencyTableGenerator()

ContingencyTableGenerator::ContingencyTableGenerator	(	const std::vector< size_t > &	nrowt,
		const std::vector< size_t > &	ncolt
	)

Definition at line 51 of file ContingencyTableGenerator.cpp.

References fact_, ncol_, ncolm_, ncolt_, nrow_, nrowm_, nrowt_, ntot_, and bpp::VectorTools::sum().

Member Function Documentation

rcont2()

RowMatrix< size_t > ContingencyTableGenerator::rcont2

(

const RandomFactory &

generator = * RandomTools::DEFAULT_GENERATOR

)

Definition at line 91 of file ContingencyTableGenerator.cpp.

References bpp::RandomFactory::drawNumber(), fact_, jwork_, ncol_, ncolt_, nrow_, nrowt_, and ntot_.

Referenced by bpp::ContingencyTableTest::ContingencyTableTest().

Member Data Documentation

fact_

std::vector<double> bpp::ContingencyTableGenerator::fact_

private

Definition at line 82 of file ContingencyTableGenerator.h.

Referenced by ContingencyTableGenerator(), and rcont2().

jwork_

std::vector<size_t> bpp::ContingencyTableGenerator::jwork_

private

Definition at line 80 of file ContingencyTableGenerator.h.

Referenced by rcont2().

ncol_

size_t bpp::ContingencyTableGenerator::ncol_

private

Definition at line 77 of file ContingencyTableGenerator.h.

Referenced by ContingencyTableGenerator(), and rcont2().

ncolm_

size_t bpp::ContingencyTableGenerator::ncolm_

private

Definition at line 79 of file ContingencyTableGenerator.h.

Referenced by ContingencyTableGenerator().

ncolt_

std::vector<size_t> bpp::ContingencyTableGenerator::ncolt_

private

Definition at line 75 of file ContingencyTableGenerator.h.

Referenced by ContingencyTableGenerator(), and rcont2().

nrow_

size_t bpp::ContingencyTableGenerator::nrow_

private

Definition at line 76 of file ContingencyTableGenerator.h.

Referenced by ContingencyTableGenerator(), and rcont2().

nrowm_

size_t bpp::ContingencyTableGenerator::nrowm_

private

Definition at line 78 of file ContingencyTableGenerator.h.

Referenced by ContingencyTableGenerator().

nrowt_

std::vector<size_t> bpp::ContingencyTableGenerator::nrowt_

private

Definition at line 74 of file ContingencyTableGenerator.h.

Referenced by ContingencyTableGenerator(), and rcont2().

ntot_

size_t bpp::ContingencyTableGenerator::ntot_

private

Definition at line 81 of file ContingencyTableGenerator.h.

Referenced by ContingencyTableGenerator(), and rcont2().

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

• Bpp/Numeric/Random/ContingencyTableGenerator.h
• Bpp/Numeric/Random/ContingencyTableGenerator.cpp