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ClpPrimalQuadraticDantzig Class Reference

Primal Column Pivot Dantzig Algorithm Class. More...

#include <ClpPrimalQuadraticDantzig.hpp>

+ Inheritance diagram for ClpPrimalQuadraticDantzig:
+ Collaboration diagram for ClpPrimalQuadraticDantzig:

Public Member Functions

Algorithmic methods
virtual int pivotColumn (CoinIndexedVector *updates, CoinIndexedVector *spareRow1, CoinIndexedVector *spareRow2, CoinIndexedVector *spareColumn1, CoinIndexedVector *spareColumn2)
 Returns pivot column, -1 if none. More...
virtual void saveWeights (ClpSimplex *model, int mode)
 Just sets model. More...
Constructors and destructors
 ClpPrimalQuadraticDantzig ()
 Default Constructor. More...
 ClpPrimalQuadraticDantzig (const ClpPrimalQuadraticDantzig &)
 Copy constructor. More...
 ClpPrimalQuadraticDantzig (ClpSimplexPrimalQuadratic *model, ClpQuadraticInfo *info)
 Constructor from model. More...
ClpPrimalQuadraticDantzigoperator= (const ClpPrimalQuadraticDantzig &rhs)
 Assignment operator. More...
virtual ~ClpPrimalQuadraticDantzig ()
 Destructor. More...
virtual ClpPrimalColumnPivotclone (bool copyData=true) const
 Clone. More...
- Public Member Functions inherited from ClpPrimalColumnPivot
virtual void updateWeights (CoinIndexedVector *input)
 Updates weights - part 1 (may be empty) More...
virtual int pivotRow (double &way)
 Signals pivot row choice: -2 (default) - use normal pivot row choice -1 to numberRows-1 - use this (will be checked) way should be -1 to go to lower bound, +1 to upper bound. More...
virtual void clearArrays ()
 Gets rid of all arrays (may be empty) More...
virtual bool looksOptimal () const
 Returns true if would not find any column. More...
virtual void setLooksOptimal (bool flag)
 Sets optimality flag (for advanced use) More...
 ClpPrimalColumnPivot ()
 Default Constructor. More...
 ClpPrimalColumnPivot (const ClpPrimalColumnPivot &)
 Copy constructor. More...
ClpPrimalColumnPivotoperator= (const ClpPrimalColumnPivot &rhs)
 Assignment operator. More...
virtual ~ClpPrimalColumnPivot ()
 Destructor. More...
ClpSimplexmodel ()
 Returns model. More...
void setModel (ClpSimplex *newmodel)
 Sets model. More...
int type ()
 Returns type (above 63 is extra information) More...
virtual int numberSprintColumns (int &numberIterations) const
 Returns number of extra columns for sprint algorithm - 0 means off. More...
virtual void switchOffSprint ()
 Switch off sprint idea. More...
virtual void maximumPivotsChanged ()
 Called when maximum pivots changes. More...

Private Attributes

Private member data

Pointer to info

ClpQuadraticInfo * quadraticInfo_

Additional Inherited Members

- Protected Attributes inherited from ClpPrimalColumnPivot
 Pointer to model. More...
int type_
 Type of column pivot algorithm. More...
bool looksOptimal_
 Says if looks optimal (normally computed) More...

Detailed Description

Primal Column Pivot Dantzig Algorithm Class.

This is simplest choice - choose largest infeasibility

Definition at line 20 of file ClpPrimalQuadraticDantzig.hpp.

Constructor & Destructor Documentation

ClpPrimalQuadraticDantzig::ClpPrimalQuadraticDantzig ( )

Default Constructor.

ClpPrimalQuadraticDantzig::ClpPrimalQuadraticDantzig ( const ClpPrimalQuadraticDantzig )

Copy constructor.

ClpPrimalQuadraticDantzig::ClpPrimalQuadraticDantzig ( ClpSimplexPrimalQuadratic *  model,
ClpQuadraticInfo *  info 

Constructor from model.

virtual ClpPrimalQuadraticDantzig::~ClpPrimalQuadraticDantzig ( )


Member Function Documentation

virtual int ClpPrimalQuadraticDantzig::pivotColumn ( CoinIndexedVector updates,
CoinIndexedVector spareRow1,
CoinIndexedVector spareRow2,
CoinIndexedVector spareColumn1,
CoinIndexedVector spareColumn2 

Returns pivot column, -1 if none.

Lumbers over all columns - slow updateArray has cost updates (also use pivotRow_ from last iteration) Can just do full price if you really want to be slow

Implements ClpPrimalColumnPivot.

virtual void ClpPrimalQuadraticDantzig::saveWeights ( ClpSimplex model,
int  mode 

Just sets model.

Implements ClpPrimalColumnPivot.

Definition at line 38 of file ClpPrimalQuadraticDantzig.hpp.

ClpPrimalQuadraticDantzig& ClpPrimalQuadraticDantzig::operator= ( const ClpPrimalQuadraticDantzig rhs)

Assignment operator.

virtual ClpPrimalColumnPivot* ClpPrimalQuadraticDantzig::clone ( bool  copyData = true) const


Implements ClpPrimalColumnPivot.

Member Data Documentation

ClpQuadraticInfo* ClpPrimalQuadraticDantzig::quadraticInfo_

Definition at line 72 of file ClpPrimalQuadraticDantzig.hpp.

The documentation for this class was generated from the following file: