Define Special Ordered Sets of type 1 and 2. More...
#include <CbcBranchActual.hpp>
Public Member Functions | |
CbcSOS () | |
CbcSOS (CbcModel *model, int numberMembers, const int *which, const double *weights, int identifier, int type=1) | |
Useful constructor - which are indices and weights are also given. | |
CbcSOS (const CbcSOS &) | |
virtual CbcObject * | clone () const |
Clone. | |
CbcSOS & | operator= (const CbcSOS &rhs) |
virtual | ~CbcSOS () |
virtual double | infeasibility (const OsiBranchingInformation *info, int &preferredWay) const |
Infeasibility - large is 0.5. | |
virtual void | feasibleRegion () |
This looks at solution and sets bounds to contain solution. | |
virtual CbcBranchingObject * | createCbcBranch (OsiSolverInterface *solver, const OsiBranchingInformation *info, int way) |
Creates a branching object. | |
virtual CbcObjectUpdateData | createUpdateInformation (const OsiSolverInterface *solver, const CbcNode *node, const CbcBranchingObject *branchingObject) |
Pass in information on branch just done and create CbcObjectUpdateData instance. | |
virtual void | updateInformation (const CbcObjectUpdateData &data) |
Update object by CbcObjectUpdateData. | |
virtual OsiSolverBranch * | solverBranch () const |
Create an OsiSolverBranch object. | |
virtual void | redoSequenceEtc (CbcModel *model, int numberColumns, const int *originalColumns) |
Redoes data when sequence numbers change. | |
OsiSOS * | osiObject (const OsiSolverInterface *solver) const |
Construct an OsiSOS object. | |
int | numberMembers () const |
Number of members. | |
const int * | members () const |
Members (indices in range 0 ... numberColumns-1). | |
int | sosType () const |
SOS type. | |
int | numberTimesDown () const |
Down number times. | |
int | numberTimesUp () const |
Up number times. | |
const double * | weights () const |
Array of weights. | |
void | setNumberMembers (int n) |
Set number of members. | |
int * | mutableMembers () const |
Members (indices in range 0 ... numberColumns-1). | |
double * | mutableWeights () const |
Array of weights. | |
virtual bool | canDoHeuristics () const |
Return true if object can take part in normal heuristics. | |
void | setIntegerValued (bool yesNo) |
Set whether set is integer valued or not. | |
Private Attributes | |
int * | members_ |
data | |
double * | weights_ |
Weights. | |
double | shadowEstimateDown_ |
Current pseudo-shadow price estimate down. | |
double | shadowEstimateUp_ |
Current pseudo-shadow price estimate up. | |
double | downDynamicPseudoRatio_ |
Down pseudo ratio. | |
double | upDynamicPseudoRatio_ |
Up pseudo ratio. | |
int | numberTimesDown_ |
Number of times we have gone down. | |
int | numberTimesUp_ |
Number of times we have gone up. | |
int | numberMembers_ |
Number of members. | |
int | sosType_ |
SOS type. | |
bool | integerValued_ |
Whether integer valued. |
Define Special Ordered Sets of type 1 and 2.
These do not have to be integer - so do not appear in lists of integers.
which_ points directly to columns of matrix
Definition at line 101 of file CbcBranchActual.hpp.
CbcSOS::CbcSOS | ( | ) |
CbcSOS::CbcSOS | ( | CbcModel * | model, | |
int | numberMembers, | |||
const int * | which, | |||
const double * | weights, | |||
int | identifier, | |||
int | type = 1 | |||
) |
Useful constructor - which are indices and weights are also given.
If null then 0,1,2.. type is SOS type
CbcSOS::CbcSOS | ( | const CbcSOS & | ) |
virtual CbcSOS::~CbcSOS | ( | ) | [virtual] |
virtual double CbcSOS::infeasibility | ( | const OsiBranchingInformation * | info, | |
int & | preferredWay | |||
) | const [virtual] |
Infeasibility - large is 0.5.
Reimplemented from CbcObject.
virtual void CbcSOS::feasibleRegion | ( | ) | [virtual] |
This looks at solution and sets bounds to contain solution.
Implements CbcObject.
virtual CbcBranchingObject* CbcSOS::createCbcBranch | ( | OsiSolverInterface * | solver, | |
const OsiBranchingInformation * | info, | |||
int | way | |||
) | [virtual] |
Creates a branching object.
Reimplemented from CbcObject.
virtual CbcObjectUpdateData CbcSOS::createUpdateInformation | ( | const OsiSolverInterface * | solver, | |
const CbcNode * | node, | |||
const CbcBranchingObject * | branchingObject | |||
) | [virtual] |
Pass in information on branch just done and create CbcObjectUpdateData instance.
If object does not need data then backward pointer will be NULL. Assumes can get information from solver
Reimplemented from CbcObject.
virtual void CbcSOS::updateInformation | ( | const CbcObjectUpdateData & | data | ) | [virtual] |
Update object by CbcObjectUpdateData.
Reimplemented from CbcObject.
virtual OsiSolverBranch* CbcSOS::solverBranch | ( | ) | const [virtual] |
Create an OsiSolverBranch object.
This returns NULL if branch not represented by bound changes
Reimplemented from CbcObject.
virtual void CbcSOS::redoSequenceEtc | ( | CbcModel * | model, | |
int | numberColumns, | |||
const int * | originalColumns | |||
) | [virtual] |
Redoes data when sequence numbers change.
Reimplemented from CbcObject.
OsiSOS* CbcSOS::osiObject | ( | const OsiSolverInterface * | solver | ) | const |
Construct an OsiSOS object.
int CbcSOS::numberMembers | ( | ) | const [inline] |
Number of members.
Definition at line 161 of file CbcBranchActual.hpp.
const int* CbcSOS::members | ( | ) | const [inline] |
Members (indices in range 0 ... numberColumns-1).
Definition at line 165 of file CbcBranchActual.hpp.
int CbcSOS::sosType | ( | ) | const [inline] |
SOS type.
Definition at line 169 of file CbcBranchActual.hpp.
int CbcSOS::numberTimesDown | ( | ) | const [inline] |
Down number times.
Definition at line 172 of file CbcBranchActual.hpp.
int CbcSOS::numberTimesUp | ( | ) | const [inline] |
Up number times.
Definition at line 175 of file CbcBranchActual.hpp.
const double* CbcSOS::weights | ( | ) | const [inline] |
Array of weights.
Definition at line 179 of file CbcBranchActual.hpp.
void CbcSOS::setNumberMembers | ( | int | n | ) | [inline] |
Set number of members.
Definition at line 183 of file CbcBranchActual.hpp.
int* CbcSOS::mutableMembers | ( | ) | const [inline] |
Members (indices in range 0 ... numberColumns-1).
Definition at line 187 of file CbcBranchActual.hpp.
double* CbcSOS::mutableWeights | ( | ) | const [inline] |
Array of weights.
Definition at line 191 of file CbcBranchActual.hpp.
virtual bool CbcSOS::canDoHeuristics | ( | ) | const [inline, virtual] |
Return true if object can take part in normal heuristics.
Definition at line 196 of file CbcBranchActual.hpp.
void CbcSOS::setIntegerValued | ( | bool | yesNo | ) | [inline] |
Set whether set is integer valued or not.
Definition at line 199 of file CbcBranchActual.hpp.
int* CbcSOS::members_ [private] |
data
Members (indices in range 0 ... numberColumns-1)
Definition at line 205 of file CbcBranchActual.hpp.
double* CbcSOS::weights_ [private] |
Weights.
Definition at line 207 of file CbcBranchActual.hpp.
double CbcSOS::shadowEstimateDown_ [mutable, private] |
Current pseudo-shadow price estimate down.
Definition at line 209 of file CbcBranchActual.hpp.
double CbcSOS::shadowEstimateUp_ [mutable, private] |
Current pseudo-shadow price estimate up.
Definition at line 211 of file CbcBranchActual.hpp.
double CbcSOS::downDynamicPseudoRatio_ [private] |
Down pseudo ratio.
Definition at line 213 of file CbcBranchActual.hpp.
double CbcSOS::upDynamicPseudoRatio_ [private] |
Up pseudo ratio.
Definition at line 215 of file CbcBranchActual.hpp.
int CbcSOS::numberTimesDown_ [private] |
Number of times we have gone down.
Definition at line 217 of file CbcBranchActual.hpp.
int CbcSOS::numberTimesUp_ [private] |
Number of times we have gone up.
Definition at line 219 of file CbcBranchActual.hpp.
int CbcSOS::numberMembers_ [private] |
Number of members.
Definition at line 221 of file CbcBranchActual.hpp.
int CbcSOS::sosType_ [private] |
SOS type.
Definition at line 223 of file CbcBranchActual.hpp.
bool CbcSOS::integerValued_ [private] |
Whether integer valued.
Definition at line 225 of file CbcBranchActual.hpp.