Clp trunk
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Linear Objective Class. More...
#include <ClpLinearObjective.hpp>
Public Member Functions | |
Stuff | |
virtual double * | gradient (const ClpSimplex *model, const double *solution, double &offset, bool refresh, int includeLinear=2) |
Returns objective coefficients. | |
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 ¤tObj, 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) |
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 ClpObjective * | clone () const |
Clone. | |
virtual ClpObjective * | subsetClone (int numberColumns, const int *whichColumns) const |
Subset clone. |
Linear Objective Class.
Definition at line 17 of file ClpLinearObjective.hpp.
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.
virtual double* ClpLinearObjective::gradient | ( | const ClpSimplex * | model, |
const double * | solution, | ||
double & | offset, | ||
bool | refresh, | ||
int | includeLinear = 2 |
||
) | [virtual] |
Returns objective coefficients.
Offset is always set to 0.0. All other parameters unused.
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 double ClpLinearObjective::objectiveValue | ( | const ClpSimplex * | model, |
const double * | solution | ||
) | const [virtual] |
Return objective value (without any ClpModel offset) (model may be NULL)
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] |