Main Page   Class Hierarchy   Alphabetical List   Compound List   File List   Compound Members   File Members  

ClpLinearObjective Class Reference

Linear Objective Class. More...

#include <ClpLinearObjective.hpp>

Inheritance diagram for ClpLinearObjective:

ClpObjective List of all members.

Public Methods

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

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 void resize (int newNumberColumns)
 Resize objective.

virtual void deleteSome (int numberToDelete, const int *which)
 Delete columns in objective.

virtual void reallyScale (const double *columnScale)
 Scale objective.

Constructors and destructors
 ClpLinearObjective ()
 Default Constructor.

 ClpLinearObjective (const double *objective, int numberColumns)
 Constructor from objective.

 ClpLinearObjective (const ClpLinearObjective &)
 Copy constructor.

 ClpLinearObjective (const ClpLinearObjective &rhs, int numberColumns, const int *whichColumns)
 Subset constructor.

ClpLinearObjective & operator= (const ClpLinearObjective &rhs)
 Assignment operator.

virtual ~ClpLinearObjective ()
 Destructor.

virtual ClpObjectiveclone () const
 Clone.

virtual ClpObjectivesubsetClone (int numberColumns, const int *whichColumns) const
 Subset clone.


Private Attributes

Private member data
Objective

double * objective_
int numberColumns_
 number of columns


Detailed Description

Linear Objective Class.

Definition at line 14 of file ClpLinearObjective.hpp.


Constructor & Destructor Documentation

ClpLinearObjective::ClpLinearObjective  
 

Default Constructor.

ClpLinearObjective::ClpLinearObjective const double *    objective,
int    numberColumns
 

Constructor from objective.

ClpLinearObjective::ClpLinearObjective const ClpLinearObjective &   
 

Copy constructor.

ClpLinearObjective::ClpLinearObjective const ClpLinearObjective &    rhs,
int    numberColumns,
const int *    whichColumns
 

Subset constructor.

Duplicates are allowed and order is as given.

virtual ClpLinearObjective::~ClpLinearObjective   [virtual]
 

Destructor.


Member Function Documentation

virtual double* ClpLinearObjective::gradient const ClpSimplex   model,
const double *    solution,
double &    offset,
bool    refresh,
int    includeLinear = 2
[virtual]
 

Returns gradient.

If Linear 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

Implements ClpObjective.

virtual double ClpLinearObjective::reducedGradient ClpSimplex   model,
double *    region,
bool    useFeasibleCosts
[virtual]
 

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

Implements ClpObjective.

virtual double ClpLinearObjective::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

Implements ClpObjective.

virtual void ClpLinearObjective::resize int    newNumberColumns [virtual]
 

Resize objective.

Implements ClpObjective.

virtual void ClpLinearObjective::deleteSome int    numberToDelete,
const int *    which
[virtual]
 

Delete columns in objective.

Implements ClpObjective.

virtual void ClpLinearObjective::reallyScale const double *    columnScale [virtual]
 

Scale objective.

Implements ClpObjective.

ClpLinearObjective& ClpLinearObjective::operator= const ClpLinearObjective &    rhs
 

Assignment operator.

virtual ClpObjective* ClpLinearObjective::clone   const [virtual]
 

Clone.

Implements ClpObjective.

virtual ClpObjective* ClpLinearObjective::subsetClone int    numberColumns,
const int *    whichColumns
const [virtual]
 

Subset clone.

Duplicates are allowed and order is as given.

Reimplemented from ClpObjective.


Member Data Documentation

double* ClpLinearObjective::objective_ [private]
 

Definition at line 94 of file ClpLinearObjective.hpp.

int ClpLinearObjective::numberColumns_ [private]
 

number of columns

Definition at line 96 of file ClpLinearObjective.hpp.


The documentation for this class was generated from the following file:
Generated on Fri Aug 6 02:01:34 2004 by doxygen1.3-rc2