kmeans_selection.hpp

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#ifndef MLPACK_METHODS_NYSTROEM_METHOD_KMEANS_SELECTION_HPP
#define MLPACK_METHODS_NYSTROEM_METHOD_KMEANS_SELECTION_HPP

#include <mlpack/prereqs.hpp>
#include <mlpack/methods/kmeans/kmeans.hpp>

namespace mlpack {
namespace kernel {

template<typename ClusteringType = kmeans::KMeans<>, size_t maxIterations = 5>
class KMeansSelection
{
 public:
  const static arma::mat* Select(const arma::mat& data, const size_t m)
  {
    arma::Row<size_t> assignments;
    arma::mat* centroids = new arma::mat;

    // Perform the K-Means clustering method.
    ClusteringType kmeans(maxIterations);
    kmeans.Cluster(data, m, assignments, *centroids);

    return centroids;
  }
};

} // namespace kernel
} // namespace mlpack

#endif