kmeans::Initialize< Index_, Data_, Cluster_, Float_, Matrix_ > Class Template Reference

Interface for k-means initialization algorithms. More...

#include <Initialize.hpp>

Inheritance diagram for kmeans::Initialize< Index_, Data_, Cluster_, Float_, Matrix_ >:

Public Member Functions
virtual Cluster_	run (const Matrix_ &data, Cluster_ num_centers, Float_ *centers) const =0

Detailed Description

template<typename Index_, typename Data_, typename Cluster_, typename Float_, class Matrix_ = Matrix<Index_, Data_>>
class kmeans::Initialize< Index_, Data_, Cluster_, Float_, Matrix_ >

Interface for k-means initialization algorithms.

Template Parameters

Index_	Integer type of the observation indices. This should be the same as the index type of Matrix_.
Data_	Numeric type of the input dataset. This should be the same as the data type of Matrix_.
Cluster_	Integer type of the cluster assignments.
Float_	Floating-point type of the centroids.
Matrix_	Class satisfying the Matrix interface.

Member Function Documentation

run()

template<typename Index_ , typename Data_ , typename Cluster_ , typename Float_ , class Matrix_ = Matrix<Index_, Data_>>

virtual Cluster_ kmeans::Initialize< Index_, Data_, Cluster_, Float_, Matrix_ >::run ( const Matrix_ & data, Cluster_ num_centers, Float_ * centers ) const

pure virtual

Parameters

	data	A matrix containing data for each observation.
	num_centers	Number of cluster centers.
[out]	centers	Pointer to an array of length equal to the product of num_centers and data.num_dimensions(). This contains a column-major matrix where rows correspond to dimensions and columns correspond to cluster centers. On output, column j will contain the final centroid locations for cluster j.

Returns

centers is filled with the new cluster centers and the number of filled centers is returned. The latter is usually equal to num_centers, but may not be if, e.g., num_centers is greater than the number of observations. If the returned value is less than num_centers, only the left-most columns in centers will be filled.

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

• kmeans/Initialize.hpp