GClasses::GCategoricalSamplerBatch Class Reference

#include <GDistribution.h>

Public Member Functions
	GCategoricalSamplerBatch (size_t categories, const GVec &distribution, GRand &rand)
	categories specifies the number of categories. distribution should specify a probability value for each category. They should sum to 1. pDistribution is expected to remain valid for the duration of this object. More...
	~GCategoricalSamplerBatch ()
void	draw (size_t samples, size_t *pOutBatch)
	This will draw a batch of samples from the categorical distribution. This method is implemented efficiently, such that it will draw them in O(samples + categories) time. (This is significantly faster than O(samples * log(categories)) time, which is what you get if you use GCategoricalSampler.) More...

Static Public Member Functions
static void	test ()

Protected Attributes
size_t	m_categories
const GVec &	m_distribution
GRandomIndexIterator	m_ii

Constructor & Destructor Documentation

GClasses::GCategoricalSamplerBatch::GCategoricalSamplerBatch	(	size_t	categories,
		const GVec &	distribution,
		GRand &	rand
	)

categories specifies the number of categories. distribution should specify a probability value for each category. They should sum to 1. pDistribution is expected to remain valid for the duration of this object.

GClasses::GCategoricalSamplerBatch::~GCategoricalSamplerBatch

(

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Member Function Documentation

void GClasses::GCategoricalSamplerBatch::draw	(	size_t	samples,
		size_t *	pOutBatch
	)

This will draw a batch of samples from the categorical distribution. This method is implemented efficiently, such that it will draw them in O(samples + categories) time. (This is significantly faster than O(samples * log(categories)) time, which is what you get if you use GCategoricalSampler.)

static void GClasses::GCategoricalSamplerBatch::test ( )

static

Member Data Documentation

size_t GClasses::GCategoricalSamplerBatch::m_categories

protected

const GVec& GClasses::GCategoricalSamplerBatch::m_distribution

protected

GRandomIndexIterator GClasses::GCategoricalSamplerBatch::m_ii

protected