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CbcHeuristicGreedyEquality Class Reference

#include <CbcHeuristicGreedy.hpp>

Inheritance diagram for CbcHeuristicGreedyEquality:

CbcHeuristic List of all members.

Public Member Functions

 CbcHeuristicGreedyEquality ()
 CbcHeuristicGreedyEquality (CbcModel &model)
 CbcHeuristicGreedyEquality (const CbcHeuristicGreedyEquality &)
 ~CbcHeuristicGreedyEquality ()
virtual CbcHeuristicclone () const
 Clone.
virtual void generateCpp (FILE *fp)
 Create C++ lines to get to current state.
virtual void setModel (CbcModel *model)
 update model (This is needed if cliques update matrix etc)
virtual int solution (double &objectiveValue, double *newSolution)
 returns 0 if no solution, 1 if valid solution.
virtual void validate ()
 Validate model i.e. sets when_ to 0 if necessary (may be NULL).
virtual void resetModel (CbcModel *model)
 Resets stuff if model changes.
int algorithm () const
void setAlgorithm (int value)
void setFraction (double value)
double fraction () const
int numberTimes () const
void setNumberTimes (int value)

Protected Attributes

CoinPackedMatrix matrix_
double fraction_
int originalNumberRows_
int algorithm_
int numberTimes_
 Do this many times.

Private Member Functions

CbcHeuristicGreedyEqualityoperator= (const CbcHeuristicGreedyEquality &rhs)
 Illegal Assignment operator.

Constructor & Destructor Documentation

CbcHeuristicGreedyEquality::CbcHeuristicGreedyEquality  ) 
 

CbcHeuristicGreedyEquality::CbcHeuristicGreedyEquality CbcModel model  ) 
 

CbcHeuristicGreedyEquality::CbcHeuristicGreedyEquality const CbcHeuristicGreedyEquality  ) 
 

CbcHeuristicGreedyEquality::~CbcHeuristicGreedyEquality  ) 
 


Member Function Documentation

virtual CbcHeuristic* CbcHeuristicGreedyEquality::clone  )  const [virtual]
 

Clone.

Implements CbcHeuristic.

virtual void CbcHeuristicGreedyEquality::generateCpp FILE *  fp  )  [virtual]
 

Create C++ lines to get to current state.

Reimplemented from CbcHeuristic.

virtual void CbcHeuristicGreedyEquality::setModel CbcModel model  )  [virtual]
 

update model (This is needed if cliques update matrix etc)

Reimplemented from CbcHeuristic.

virtual int CbcHeuristicGreedyEquality::solution double &  objectiveValue,
double *  newSolution
[virtual]
 

returns 0 if no solution, 1 if valid solution.

Sets solution values if good, sets objective value (only if good) We leave all variables which are at one at this node of the tree to that value and will initially set all others to zero. We then sort all variables in order of their cost divided by the number of entries in rows which are not yet covered. We randomize that value a bit so that ties will be broken in different ways on different runs of the heuristic. We then choose the best one and set it to one and repeat the exercise.

Implements CbcHeuristic.

virtual void CbcHeuristicGreedyEquality::validate  )  [virtual]
 

Validate model i.e. sets when_ to 0 if necessary (may be NULL).

Reimplemented from CbcHeuristic.

virtual void CbcHeuristicGreedyEquality::resetModel CbcModel model  )  [virtual]
 

Resets stuff if model changes.

Implements CbcHeuristic.

int CbcHeuristicGreedyEquality::algorithm  )  const [inline]
 

Definition at line 136 of file CbcHeuristicGreedy.hpp.

void CbcHeuristicGreedyEquality::setAlgorithm int  value  )  [inline]
 

Definition at line 138 of file CbcHeuristicGreedy.hpp.

References algorithm_.

void CbcHeuristicGreedyEquality::setFraction double  value  )  [inline]
 

Definition at line 141 of file CbcHeuristicGreedy.hpp.

References fraction_.

double CbcHeuristicGreedyEquality::fraction  )  const [inline]
 

Definition at line 143 of file CbcHeuristicGreedy.hpp.

int CbcHeuristicGreedyEquality::numberTimes  )  const [inline]
 

Definition at line 146 of file CbcHeuristicGreedy.hpp.

void CbcHeuristicGreedyEquality::setNumberTimes int  value  )  [inline]
 

Definition at line 148 of file CbcHeuristicGreedy.hpp.

References numberTimes_.

CbcHeuristicGreedyEquality& CbcHeuristicGreedyEquality::operator= const CbcHeuristicGreedyEquality rhs  )  [private]
 

Illegal Assignment operator.


Member Data Documentation

CoinPackedMatrix CbcHeuristicGreedyEquality::matrix_ [protected]
 

Definition at line 154 of file CbcHeuristicGreedy.hpp.

double CbcHeuristicGreedyEquality::fraction_ [protected]
 

Definition at line 156 of file CbcHeuristicGreedy.hpp.

Referenced by setFraction().

int CbcHeuristicGreedyEquality::originalNumberRows_ [protected]
 

Definition at line 158 of file CbcHeuristicGreedy.hpp.

int CbcHeuristicGreedyEquality::algorithm_ [protected]
 

Definition at line 164 of file CbcHeuristicGreedy.hpp.

Referenced by setAlgorithm().

int CbcHeuristicGreedyEquality::numberTimes_ [protected]
 

Do this many times.

Definition at line 166 of file CbcHeuristicGreedy.hpp.

Referenced by setNumberTimes().


The documentation for this class was generated from the following file:
Generated on Sun Jun 11 02:01:18 2006 by  doxygen 1.3.9.1