ClpPrimalColumnDantzig Class Reference

Primal Column Pivot Dantzig Algorithm Class. More...

#include <ClpPrimalColumnDantzig.hpp>

Inheritance diagram for ClpPrimalColumnDantzig:

[legend]Collaboration diagram for ClpPrimalColumnDantzig:


Public Member Functions
Algorithmic methods
virtual int	pivotColumn (CoinIndexedVector updates, CoinIndexedVector spareRow1, CoinIndexedVector spareRow2, CoinIndexedVector spareColumn1, CoinIndexedVector *spareColumn2)
	Returns pivot column, -1 if none.
virtual void	saveWeights (ClpSimplex *model, int mode)
	Just sets model.
Constructors and destructors
	ClpPrimalColumnDantzig ()
	Default Constructor.
	ClpPrimalColumnDantzig (const ClpPrimalColumnDantzig &)
	Copy constructor.
ClpPrimalColumnDantzig &	operator= (const ClpPrimalColumnDantzig &rhs)
	Assignment operator.
virtual	~ClpPrimalColumnDantzig ()
	Destructor.
virtual ClpPrimalColumnPivot *	clone (bool copyData=true) const
	Clone.

Detailed Description

Primal Column Pivot Dantzig Algorithm Class.

This is simplest choice - choose largest infeasibility

Definition at line 16 of file ClpPrimalColumnDantzig.hpp.

Constructor & Destructor Documentation

ClpPrimalColumnDantzig::ClpPrimalColumnDantzig ( )

Default Constructor.

ClpPrimalColumnDantzig::ClpPrimalColumnDantzig ( const ClpPrimalColumnDantzig & )

Copy constructor.

virtual ClpPrimalColumnDantzig::~ClpPrimalColumnDantzig ( ) [virtual]

Destructor.

Member Function Documentation

virtual int ClpPrimalColumnDantzig::pivotColumn	(	CoinIndexedVector *	updates,
		CoinIndexedVector *	spareRow1,
		CoinIndexedVector *	spareRow2,
		CoinIndexedVector *	spareColumn1,
		CoinIndexedVector *	spareColumn2
	)			`[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 ClpPrimalColumnPivot.