itkMaximumDecisionRule.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkMaximumDecisionRule.h,v $
  Language:  C++
  Date:      $Date: 2002/06/11 07:18:33 $
  Version:   $Revision: 1.1 $

  Copyright (c) 2002 Insight Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkMaximumDecisionRule_h
#define __itkMaximumDecisionRule_h

#include <vector>
#include "itkDecisionRuleBase.h"

namespace itk{ 

class ITK_EXPORT MaximumDecisionRule : 
      public DecisionRuleBase
{
public:
  typedef MaximumDecisionRule Self ;
  typedef DecisionRuleBase Superclass;
  typedef SmartPointer<Self> Pointer;

  itkTypeMacro(MaxDecisionRule, DecisionRuleBase);

  itkNewMacro(Self) ;

  unsigned int Evaluate(std::vector< double > &discriminantScores) ;

protected:
  MaximumDecisionRule() {}
  virtual ~MaximumDecisionRule() {}
  void PrintSelf(std::ostream& os, Indent indent) const ;
} ; // end of class

inline unsigned int MaximumDecisionRule::Evaluate(std::vector< double > 
                                                  &discriminantScores)
{
  double max = discriminantScores[0] ;
  unsigned int maxIndex = 0 ;
  unsigned int i ;
  for (i = 1 ; i < discriminantScores.size() ; i++)
    {
      if (discriminantScores[i] > max) 
        {
          max = discriminantScores[i] ;
          maxIndex = i ;
        }
    }
  return maxIndex ;
}

} // end of namespace itk

#endif

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