partitioner.hpp

dysii是一款非常出色的滤波函数库

#ifndef INDII_ML_AUX_PARTITIONER_HPP
#define INDII_ML_AUX_PARTITIONER_HPP

#include "DiracMixturePdf.hpp"

namespace indii {
  namespace ml {
    namespace aux {
/**
 * Partitions a set of weighted points into two sets for constructing a
 * partition tree.    
 *
 * @author Lawrence Murray <[e-mail]>
 * @version $Rev: 404 $
 * @date $Date: 2008-03-05 14:52:55 +0000 (Wed, 05 Mar 2008) $
 */
class Partitioner {
public:
  /**
   * Partitions.
   */
  enum Partition {
    LEFT,
    RIGHT
  };

  /**
   * Weighted sample subset.
   */
  typedef std::vector<DiracMixturePdf::weighted_component*> points;

  /**
   * Destructor.
   */
  virtual ~Partitioner();

  /**
   * Initialise the partitioner.
   *
   * @param xws Weighted sample subset of at least two samples.
   *
   * Initialises the partitioner after construction, optionally using
   * the given weighted sample set as a basis for the partition (e.g.
   * using its bounds or covariance).
   */
  virtual void init(points& xws) = 0;
  
  /**
   * Assign a sample to a partition.
   *
   * @param x The sample to assign.
   *
   * @return The partition to which the sample is assigned.
   */
  virtual Partition assign(const aux::vector& x) = 0;

};
 
    }
  }
}

#endif