ClpAmplObjective Class Reference

Ampl Objective Class. More...

#include <ClpAmplObjective.hpp>

List of all members.

Public Member Functions

Stuff



virtual double * gradient (const ClpSimplex *model, const double *solution, double &offset, bool refresh, int includeLinear=2)
 Returns gradient.
virtual double reducedGradient (ClpSimplex *model, double *region, bool useFeasibleCosts)
 Resize objective.
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.
virtual double objectiveValue (const ClpSimplex *model, const double *solution) const
 Return objective value (without any ClpModel offset) (model may be NULL).
virtual void resize (int newNumberColumns)
 Returns gradient.
virtual void deleteSome (int numberToDelete, const int *which)
 Delete columns in objective.
virtual void reallyScale (const double *columnScale)
 Scale objective.
virtual int markNonlinear (char *which)
 Given a zeroed array sets nonlinear columns to 1.
virtual void newXValues ()
 Say we have new primal solution - so may need to recompute.
Constructors and destructors



 ClpAmplObjective ()
 Default Constructor.
 ClpAmplObjective (void *amplInfo)
 Constructor from ampl info.
 ClpAmplObjective (const ClpAmplObjective &rhs)
 Copy constructor .
ClpAmplObjectiveoperator= (const ClpAmplObjective &rhs)
 Assignment operator.
virtual ~ClpAmplObjective ()
 Destructor.
virtual ClpObjective * clone () const
 Clone.
Gets and sets



double * linearObjective () const
 Linear objective.

Private Attributes

Private member data

Saved offset



double offset_
 Ampl info.
void * amplObjective_
 Ampl info.
double * objective_
 Objective.
double * gradient_
 Gradient.

Detailed Description

Ampl Objective Class.

Definition at line 15 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]

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 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.


Member Data Documentation

double ClpAmplObjective::offset_ [private]

Ampl info.

Definition at line 99 of file ClpAmplObjective.hpp.

Ampl info.

Definition at line 101 of file ClpAmplObjective.hpp.

double* ClpAmplObjective::objective_ [private]

Objective.

Definition at line 103 of file ClpAmplObjective.hpp.

double* ClpAmplObjective::gradient_ [private]

Gradient.

Definition at line 105 of file ClpAmplObjective.hpp.


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

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