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ClpLinearObjective Class Reference

Linear Objective Class. More...

`#include <ClpLinearObjective.hpp>`

Inheritance diagram for ClpLinearObjective:
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Collaboration diagram for ClpLinearObjective:
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## Public Member Functions
Stuff
virtual double * | gradient (const ClpSimplex *model, const double *solution, double &offset, bool refresh, int includeLinear=2)
| Returns objective coefficients. More...
virtual double | reducedGradient (ClpSimplex *model, double *region, bool useFeasibleCosts)
| Returns reduced gradient.Returns an offset (to be added to current one). 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)
| Resize objective. More...
virtual void | deleteSome (int numberToDelete, const int *which)
| Delete columns in objective. More...
virtual void | reallyScale (const double *columnScale)
| Scale objective. More...
Constructors and destructors
| ClpLinearObjective ()
| Default Constructor. More...
| ClpLinearObjective (const double *objective, int numberColumns)
| Constructor from objective. More...
| ClpLinearObjective (const ClpLinearObjective &)
| Copy constructor. More...
| ClpLinearObjective (const ClpLinearObjective &rhs, int numberColumns, const int *whichColumns)
| Subset constructor. More...
ClpLinearObjective & | operator= (const ClpLinearObjective &rhs)
| Assignment operator. More...
virtual | ~ClpLinearObjective ()
| Destructor. More...
virtual ClpObjective * | clone () const
| Clone. More...
virtual ClpObjective * | subsetClone (int numberColumns, const int *whichColumns) const
| Subset clone. More...
Public Member Functions inherited from ClpObjective
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...
| ClpObjective ()
| Default Constructor. More...
| ClpObjective (const ClpObjective &)
| Copy constructor. More...
ClpObjective & | operator= (const ClpObjective &rhs)
| Assignment operator. More...
virtual | ~ClpObjective ()
| Destructor. More...
int | type () const
| Returns type (above 63 is extra information) More...
void | setType (int value)
| Sets type (above 63 is extra information) More...
int | activated () const
| Whether activated. More...
void | setActivated (int value)
| Set whether activated. More...
double | nonlinearOffset () const
| Objective offset. More...

## Private Attributes
Private member data
Objective
double * | objective_
int | numberColumns_
| number of columns More...

## Additional Inherited Members
Protected Attributes inherited from ClpObjective
double | offset_
| Value of non-linear part of objective. More...
int | type_
| Type of objective - linear is 1. More...
int | activated_
| Whether activated. More...

## Detailed Description

Linear Objective Class.

Definition at line 17 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 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

Subset clone.

Duplicates are allowed and order is as given.

Reimplemented from ClpObjective.

## Member Data Documentation

double* ClpLinearObjective::objective_
| private

Definition at line 95 of file ClpLinearObjective.hpp.

int ClpLinearObjective::numberColumns_
| private

number of columns

Definition at line 97 of file ClpLinearObjective.hpp.

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

- /tmp/Clp-1.17.6/Clp/src/ClpLinearObjective.hpp