AbcPrimalColumnDantzig Class Reference

Primal Column Pivot Dantzig Algorithm Class. More...

#include <AbcPrimalColumnDantzig.hpp>

Inheritance diagram for AbcPrimalColumnDantzig:

Collaboration diagram for AbcPrimalColumnDantzig:

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.
AbcPrimalColumnDantzig &	operator= (const AbcPrimalColumnDantzig &rhs)
	Assignment operator.
virtual	~AbcPrimalColumnDantzig ()
	Destructor.
virtual AbcPrimalColumnPivot *	clone (bool copyData=true) const
	Clone.

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Detailed Description

Primal Column Pivot Dantzig Algorithm Class.

This is simplest choice - choose largest infeasibility

Definition at line 19 of file AbcPrimalColumnDantzig.hpp.

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Constructor & Destructor Documentation

AbcPrimalColumnDantzig::AbcPrimalColumnDantzig

(

)

Default Constructor.

AbcPrimalColumnDantzig::AbcPrimalColumnDantzig

(

const AbcPrimalColumnDantzig &

)

Copy constructor.

virtual AbcPrimalColumnDantzig::~AbcPrimalColumnDantzig

(

)

[virtual]

Destructor.

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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.

virtual AbcPrimalColumnPivot* AbcPrimalColumnDantzig::clone

(

bool

copyData = true

)

const [virtual]

Clone.

Implements AbcPrimalColumnPivot.

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

• src/AbcPrimalColumnDantzig.hpp