vpHinkley.h

/****************************************************************************
 *
 * $Id: vpHinkley.h 4574 2014-01-09 08:48:51Z fspindle $
 *
 * This file is part of the ViSP software.
 * Copyright (C) 2005 - 2014 by INRIA. All rights reserved.
 * 
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact INRIA about acquiring a ViSP Professional 
 * Edition License.
 *
 * See http://www.irisa.fr/lagadic/visp/visp.html for more information.
 * 
 * This software was developed at:
 * INRIA Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 * http://www.irisa.fr/lagadic
 *
 * If you have questions regarding the use of this file, please contact
 * INRIA at visp@inria.fr
 * 
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *
 * Description:
 * Hinkley's cumulative sum test implementation.
 *
 * Authors:
 * Fabien Spindler
 *
 *****************************************************************************/

#ifndef vpHinkley_H
#define vpHinkley_H

#include <visp/vpConfig.h>

class VISP_EXPORT vpHinkley
{
 public:
  typedef enum {
    noJump, 
    downwardJump, 
    upwardJump 
  } vpHinkleyJumpType;

 public:
  vpHinkley();
  ~vpHinkley();
  vpHinkley(double alpha, double delta);

  void init();
  void init(double alpha, double delta) ;

  void setDelta(double delta);
  void setAlpha(double alpha);
  vpHinkleyJumpType testDownwardJump(double signal);
  vpHinkleyJumpType testUpwardJump(double signal);
  vpHinkleyJumpType testDownUpwardJump(double signal);

  static void print(vpHinkleyJumpType jump) ;

  inline double getMean() {return mean;}
  inline double getSk() {return Sk;}
  inline double getMk() {return Mk;}
  inline double getTk() {return Tk;}
  inline double getNk() {return Nk;}
 private:
  void computeMean(double signal);
  void computeSk(double signal);
  void computeMk();
  void computeTk(double signal);
  void computeNk();

 private:
  double dmin2;
  double alpha;
  int    nsignal;   // Signal length
  double mean;  // Signal mean value
  double Sk;
  double Mk;
  double Tk;
  double Nk;
};

#endif