---

IndexedReal.hpp

Go to the documentation of this file.

/*==========================================================================
 *
 * Original source copyright (c) 2000, Carnegie Mellon University.  
 * See copyright.cmu for details.
 * Modifications copyright (c) 2002, University of Massachusetts.
 * See copyright.umass for details.
 *
 *==========================================================================
*/


#ifndef _INDEXEDREAL_HPP
#define _INDEXEDREAL_HPP


// CLASSES: IndexedReal, IndexedRealVector (C. Zhai, 12/1/2000)
// Normalize and LogToPosterior (added dmf, 09/2002)

#include "common_headers.hpp"
#include <algorithm>

struct IndexedReal {
  int ind;
  double val;
};


class IndexedRealVector : public vector<IndexedReal> {
public:
  
  IndexedRealVector() : vector<IndexedReal>() {}
  IndexedRealVector(int size) : vector<IndexedReal>(size) {}
  virtual ~IndexedRealVector() {}
  virtual iterator FindByIndex(int index);

  // return true iff the entry already exists.
  virtual bool IncreaseValueFor(int index, double value);

  virtual void PushValue(int index, double value);

  virtual void Sort(bool descending = true);

  virtual void NormalizeValues();

  virtual void LogToPosterior();


private:


  class IndexedRealAscending {
  public:
    bool operator()(const IndexedReal & a, const IndexedReal & b) {
      return a.val < b.val;  // based on the real value
    }
  };

  class IndexedRealDescending { 
  public: 
    bool operator()(const IndexedReal & a, const IndexedReal & b) {
      return a.val > b.val;  // based on the real value
    }
  };

  static IndexedRealAscending ascendOrder;
  static IndexedRealDescending descendOrder;

};



#endif //_INDEXEDREAL_HPP


  

---