pcl::Kmeans Class Reference

K-means clustering. More...

#include <pcl/ml/kmeans.h>

Public Types
typedef unsigned int	PointId
typedef unsigned int	ClusterId
typedef std::set< PointId >	SetPoints
typedef std::vector< float >	Point
typedef std::vector< SetPoints >	ClustersToPoints
typedef std::vector< ClusterId >	PointsToClusters
typedef std::vector< Point >	Centroids

Public Member Functions
	Kmeans (unsigned int num_points, unsigned int num_dimensions)
	Empty constructor. More...
	~Kmeans ()
	This destructor destroys. More...
void	setClusterSize (unsigned int k)
	This method sets the k-means cluster size. More...
void	kMeans ()
void	setInputData (std::vector< Point > &data)
void	addDataPoint (Point &data_point)
void	initialClusterPoints ()
void	computeCentroids ()
float	distance (const Point &x, const Point &y)
Centroids	get_centroids ()

Protected Attributes
unsigned int	num_points_
unsigned int	num_dimensions_
unsigned int	num_clusters_
	The number of clusters. More...
std::vector< Point >	data_
	The cluster centroids. More...
ClustersToPoints	clusters_to_points_
PointsToClusters	points_to_clusters_
Centroids	centroids_

Detailed Description

K-means clustering.

Author

Christian Potthast

Definition at line 60 of file kmeans.h.

Member Typedef Documentation

typedef std::vector<Point> pcl::Kmeans::Centroids

Definition at line 91 of file kmeans.h.

typedef unsigned int pcl::Kmeans::ClusterId

Definition at line 77 of file kmeans.h.

typedef std::vector<SetPoints> pcl::Kmeans::ClustersToPoints

Definition at line 87 of file kmeans.h.

typedef std::vector<float> pcl::Kmeans::Point

Definition at line 84 of file kmeans.h.

typedef unsigned int pcl::Kmeans::PointId

Definition at line 76 of file kmeans.h.

typedef std::vector<ClusterId> pcl::Kmeans::PointsToClusters

Definition at line 89 of file kmeans.h.

typedef std::set<PointId> pcl::Kmeans::SetPoints

Definition at line 82 of file kmeans.h.

Constructor & Destructor Documentation

pcl::Kmeans::Kmeans	(	unsigned int	num_points,
		unsigned int	num_dimensions
	)

Empty constructor.

Definition at line 53 of file kmeans.hpp.

pcl::Kmeans::~Kmeans

(

)

This destructor destroys.

Definition at line 60 of file kmeans.hpp.

References pcl::getFieldIndex().

Member Function Documentation

void pcl::Kmeans::addDataPoint ( Point &  data_point )

inline

Definition at line 135 of file kmeans.h.

Referenced by pcl::UnaryClassifier< PointT >::kmeansClustering().

void pcl::Kmeans::computeCentroids

(

)

float pcl::Kmeans::distance ( const Point &  x, const Point &  y  )

inline

Definition at line 151 of file kmeans.h.

Centroids pcl::Kmeans::get_centroids ( )

inline

Definition at line 165 of file kmeans.h.

Referenced by pcl::UnaryClassifier< PointT >::kmeansClustering().

void pcl::Kmeans::initialClusterPoints

(

)

void pcl::Kmeans::kMeans

(

)

Referenced by pcl::UnaryClassifier< PointT >::kmeansClustering().

void pcl::Kmeans::setClusterSize ( unsigned int  k )

inline

This method sets the k-means cluster size.

Parameters

[in]

k

number of clusters

Definition at line 106 of file kmeans.h.

Referenced by pcl::UnaryClassifier< PointT >::kmeansClustering().

void pcl::Kmeans::setInputData ( std::vector< Point > &  data )

inline

Definition at line 126 of file kmeans.h.

Member Data Documentation

Centroids pcl::Kmeans::centroids_

protected

Definition at line 196 of file kmeans.h.

ClustersToPoints pcl::Kmeans::clusters_to_points_

protected

Definition at line 194 of file kmeans.h.

std::vector<Point> pcl::Kmeans::data_

protected

The cluster centroids.

Definition at line 192 of file kmeans.h.

unsigned int pcl::Kmeans::num_clusters_

protected

The number of clusters.

Definition at line 182 of file kmeans.h.

unsigned int pcl::Kmeans::num_dimensions_

protected

Definition at line 178 of file kmeans.h.

unsigned int pcl::Kmeans::num_points_

protected

Definition at line 177 of file kmeans.h.

PointsToClusters pcl::Kmeans::points_to_clusters_

protected

Definition at line 195 of file kmeans.h.

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

• pcl/ml/kmeans.h
• pcl/ml/impl/kmeans.hpp