ClpAmplObjective Class Reference

Ampl Objective Class. More...

#include <ClpAmplObjective.hpp>

Inheritance diagram for ClpAmplObjective:

Collaboration diagram for ClpAmplObjective:

Public Member Functions
Stuff
virtual double *	gradient (const ClpSimplex *model, const double *solution, double &offset, bool refresh, int includeLinear=2)
	Returns gradient. More...
virtual double	reducedGradient (ClpSimplex *model, double *region, bool useFeasibleCosts)
	Resize objective. More...
virtual double	stepLength (ClpSimplex *model, const double *solution, const double *change, double maximumTheta, double &currentObj, double &predictedObj, double &thetaObj)
	Returns step length which gives minimum of objective for solution + theta * change vector up to maximum theta. More...
virtual double	objectiveValue (const ClpSimplex *model, const double *solution) const
	Return objective value (without any ClpModel offset) (model may be NULL) More...
virtual void	resize (int newNumberColumns)
virtual void	deleteSome (int numberToDelete, const int *which)
	Delete columns in objective. More...
virtual void	reallyScale (const double *columnScale)
	Scale objective. More...
virtual int	markNonlinear (char *which)
	Given a zeroed array sets nonlinear columns to 1. More...
virtual void	newXValues ()
	Say we have new primal solution - so may need to recompute. More...
Constructors and destructors
	ClpAmplObjective ()
	Default Constructor. More...
	ClpAmplObjective (void *amplInfo)
	Constructor from ampl info. More...
	ClpAmplObjective (const ClpAmplObjective &rhs)
	Copy constructor . More...
ClpAmplObjective &	operator= (const ClpAmplObjective &rhs)
	Assignment operator. More...
virtual	~ClpAmplObjective ()
	Destructor. More...
virtual ClpObjective *	clone () const
	Clone. More...
Gets and sets
double *	linearObjective () const
	Linear objective. More...

Private Attributes
Private member data
Saved offset
double	offset_
void *	amplObjective_
	Ampl info. More...
double *	objective_
	Objective. More...
double *	gradient_
	Gradient. More...

Detailed Description

Ampl Objective Class.

Definition at line 18 of file ClpAmplObjective.hpp.

Constructor & Destructor Documentation

ClpAmplObjective() [1/3]

ClpAmplObjective::ClpAmplObjective

(

)

Default Constructor.

ClpAmplObjective() [2/3]

ClpAmplObjective::ClpAmplObjective

(

void *

amplInfo

)

Constructor from ampl info.

ClpAmplObjective() [3/3]

ClpAmplObjective::ClpAmplObjective

(

const ClpAmplObjective &

rhs

)

Copy constructor .

~ClpAmplObjective()

virtual ClpAmplObjective::~ClpAmplObjective ( )

virtual

Destructor.

Member Function Documentation

gradient()

virtual double* ClpAmplObjective::gradient ( const ClpSimplex *  model, const double *  solution, double &  offset, bool  refresh, int  includeLinear = 2  )

virtual

Returns gradient.

If Ampl then solution may be NULL, also returns an offset (to be added to current one) If refresh is false then uses last solution Uses model for scaling includeLinear 0 - no, 1 as is, 2 as feasible

reducedGradient()

virtual double ClpAmplObjective::reducedGradient ( ClpSimplex *  model, double *  region, bool  useFeasibleCosts  )

virtual

Resize objective.

Returns reduced gradient.Returns an offset (to be added to current one).

stepLength()

virtual double ClpAmplObjective::stepLength ( ClpSimplex *  model, const double *  solution, const double *  change, double  maximumTheta, double &  currentObj, double &  predictedObj, double &  thetaObj  )

virtual

Returns step length which gives minimum of objective for solution + theta * change vector up to maximum theta.

arrays are numberColumns+numberRows Also sets current objective, predicted and at maximumTheta

objectiveValue()

virtual double ClpAmplObjective::objectiveValue ( const ClpSimplex *  model, const double *  solution  ) const

virtual

Return objective value (without any ClpModel offset) (model may be NULL)

resize()

virtual void ClpAmplObjective::resize ( int  newNumberColumns )

virtual

deleteSome()

virtual void ClpAmplObjective::deleteSome ( int  numberToDelete, const int *  which  )

virtual

Delete columns in objective.

reallyScale()

virtual void ClpAmplObjective::reallyScale ( const double *  columnScale )

virtual

Scale objective.

markNonlinear()

virtual int ClpAmplObjective::markNonlinear ( char *  which )

virtual

Given a zeroed array sets nonlinear columns to 1.

Returns number of nonlinear columns

newXValues()

virtual void ClpAmplObjective::newXValues ( )

virtual

Say we have new primal solution - so may need to recompute.

operator=()

ClpAmplObjective& ClpAmplObjective::operator=

(

const ClpAmplObjective &

rhs

)

Assignment operator.

clone()

virtual ClpObjective* ClpAmplObjective::clone ( ) const

virtual

Clone.

linearObjective()

double* ClpAmplObjective::linearObjective

(

)

const

Linear objective.

Member Data Documentation

offset_

double ClpAmplObjective::offset_

private

Definition at line 100 of file ClpAmplObjective.hpp.

amplObjective_

void* ClpAmplObjective::amplObjective_

private

Ampl info.

Definition at line 102 of file ClpAmplObjective.hpp.

objective_

double* ClpAmplObjective::objective_

private

Objective.

Definition at line 104 of file ClpAmplObjective.hpp.

gradient_

double* ClpAmplObjective::gradient_

private

Gradient.

Definition at line 106 of file ClpAmplObjective.hpp.

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

• /home/ted/Projects/Cbc/Cbc/src/ClpAmplObjective.hpp