AbcPrimalColumnDantzig Class Reference

Primal Column Pivot Dantzig Algorithm Class. More...

#include <AbcPrimalColumnDantzig.hpp>

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List of all members.

Public Member Functions

Algorithmic methods



virtual int pivotColumn (CoinPartitionedVector *updates, CoinPartitionedVector *spareRow2, CoinPartitionedVector *spareColumn1)
 Returns pivot column, -1 if none.
virtual void saveWeights (AbcSimplex *model, int)
 Just sets model.
Constructors and destructors



 AbcPrimalColumnDantzig ()
 Default Constructor.
 AbcPrimalColumnDantzig (const AbcPrimalColumnDantzig &)
 Copy constructor.
AbcPrimalColumnDantzigoperator= (const AbcPrimalColumnDantzig &rhs)
 Assignment operator.
virtual ~AbcPrimalColumnDantzig ()
 Destructor.
virtual AbcPrimalColumnPivotclone (bool copyData=true) const
 Clone.

Detailed Description

Primal Column Pivot Dantzig Algorithm Class.

This is simplest choice - choose largest infeasibility

Definition at line 19 of file AbcPrimalColumnDantzig.hpp.


Constructor & Destructor Documentation

AbcPrimalColumnDantzig::AbcPrimalColumnDantzig (  ) 

Default Constructor.

AbcPrimalColumnDantzig::AbcPrimalColumnDantzig ( const AbcPrimalColumnDantzig  ) 

Copy constructor.

virtual AbcPrimalColumnDantzig::~AbcPrimalColumnDantzig (  )  [virtual]

Destructor.


Member Function Documentation

virtual int AbcPrimalColumnDantzig::pivotColumn ( CoinPartitionedVector updates,
CoinPartitionedVector spareRow2,
CoinPartitionedVector spareColumn1 
) [virtual]

Returns pivot column, -1 if none.

Lumbers over all columns - slow The Packed CoinIndexedVector updates has cost updates - for normal LP that is just +-weight where a feasibility changed. It also has reduced cost from last iteration in pivot row Can just do full price if you really want to be slow

Implements AbcPrimalColumnPivot.

virtual void AbcPrimalColumnDantzig::saveWeights ( AbcSimplex model,
int   
) [inline, virtual]

Just sets model.

Implements AbcPrimalColumnPivot.

Definition at line 38 of file AbcPrimalColumnDantzig.hpp.

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

Assignment operator.

Reimplemented from AbcPrimalColumnPivot.

virtual AbcPrimalColumnPivot* AbcPrimalColumnDantzig::clone ( bool  copyData = true  )  const [virtual]

Clone.

Implements AbcPrimalColumnPivot.


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

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