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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...
 
ClpAmplObjectiveoperator= (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...
 

Detailed Description

Ampl Objective Class.

Definition at line 18 of file ClpAmplObjective.hpp.

Constructor & Destructor Documentation

ClpAmplObjective::ClpAmplObjective ( )

Default Constructor.

ClpAmplObjective::ClpAmplObjective ( void *  amplInfo)

Constructor from ampl info.

ClpAmplObjective::ClpAmplObjective ( const ClpAmplObjective rhs)

Copy constructor .

virtual ClpAmplObjective::~ClpAmplObjective ( )
virtual

Destructor.

Member Function Documentation

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

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).

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

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

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

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

Delete columns in objective.

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

Scale objective.

virtual int ClpAmplObjective::markNonlinear ( char *  which)
virtual

Given a zeroed array sets nonlinear columns to 1.

Returns number of nonlinear columns

virtual void ClpAmplObjective::newXValues ( )
virtual

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

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

Assignment operator.

virtual ClpObjective* ClpAmplObjective::clone ( ) const
virtual

Clone.

double* ClpAmplObjective::linearObjective ( ) const

Linear objective.


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