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/***************************************************************************
    statistics.h  -  description

    begin                : Fri Aug 25 2000
    copyright            : (C) 2000 by Andreas Kopmann
    email                : kopmann@hpe.fzk.de
 ***************************************************************************/


#ifndef STATISTICS_H
#define STATISTICS_H

#include <cstdio>

class statistics {
public: 
  statistics();
  ~statistics();

  statistics operator=(statistics zuw) { // ???

    this->min = zuw.min;
    this->max = zuw.max;
    this->mean = zuw.mean;
    this->variance = zuw.variance;

  return(*this); // MS VC++ wants it ?!
  }

  void of(unsigned short *data, int n);

  void of(statistics *stat, int n);

  float calcMean(unsigned short *data, int n);
  unsigned short calcMin(unsigned short *data, int n);
  unsigned short calcMax(unsigned short *data, int n);
  float calcVariance(unsigned short *data, int n);

  void display(FILE *fout);

  void setMask(unsigned short mask) {
    this->mask = mask;
  }

  void add(statistics *stat);

  void minus(statistics *stat);
  
    
  
// private:
  
  unsigned short min;
  unsigned short max;
  float mean;
  float variance;

private:

  unsigned short mask;
  
};

#endif