Cbc  2.9.9
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CbcSimpleIntegerFixed Class Reference

Define a single integer class where branching is forced until fixed. More...

#include <CbcBranchUser.hpp>

+ Inheritance diagram for CbcSimpleIntegerFixed:
+ Collaboration diagram for CbcSimpleIntegerFixed:

Public Member Functions

 CbcSimpleIntegerFixed ()
 
 CbcSimpleIntegerFixed (CbcModel *model, int iColumn, double breakEven=0.5)
 
 CbcSimpleIntegerFixed (const CbcSimpleInteger &simple)
 
 CbcSimpleIntegerFixed (const CbcSimpleIntegerFixed &)
 
virtual CbcObjectclone () const
 Clone. More...
 
CbcSimpleIntegerFixedoperator= (const CbcSimpleIntegerFixed &rhs)
 
 ~CbcSimpleIntegerFixed ()
 
virtual double infeasibility (int &preferredWay) const
 Infeasibility - large is 0.5. More...
 
virtual CbcBranchingObjectcreateBranch (OsiSolverInterface *solver, const OsiBranchingInformation *info, int way)
 Creates a branching object. More...
 
- Public Member Functions inherited from CbcSimpleInteger
 CbcSimpleInteger ()
 
 CbcSimpleInteger (CbcModel *model, int iColumn, double breakEven=0.5)
 
 CbcSimpleInteger (CbcModel *model, const OsiSimpleInteger *object)
 
 CbcSimpleInteger (const CbcSimpleInteger &)
 
CbcSimpleIntegeroperator= (const CbcSimpleInteger &rhs)
 
virtual ~CbcSimpleInteger ()
 
OsiSimpleIntegerosiObject () const
 Construct an OsiSimpleInteger object. More...
 
virtual double infeasibility (const OsiBranchingInformation *info, int &preferredWay) const
 Infeasibility - large is 0.5. More...
 
virtual double feasibleRegion (OsiSolverInterface *solver, const OsiBranchingInformation *info) const
 Set bounds to fix the variable at the current (integer) value. More...
 
virtual CbcBranchingObjectcreateCbcBranch (OsiSolverInterface *solver, const OsiBranchingInformation *info, int way)
 Create a branching object and indicate which way to branch first. More...
 
void fillCreateBranch (CbcIntegerBranchingObject *branching, const OsiBranchingInformation *info, int way)
 Fills in a created branching object. More...
 
virtual OsiSolverBranchsolverBranch (OsiSolverInterface *solver, const OsiBranchingInformation *info) const
 Create an OsiSolverBranch object. More...
 
virtual void feasibleRegion ()
 Set bounds to fix the variable at the current (integer) value. More...
 
virtual int columnNumber () const
 Column number if single column object -1 otherwise, so returns >= 0 Used by heuristics. More...
 
void setColumnNumber (int value)
 Set column number. More...
 
virtual void resetBounds (const OsiSolverInterface *solver)
 Reset variable bounds to their original values. More...
 
virtual void resetSequenceEtc (int numberColumns, const int *originalColumns)
 Change column numbers after preprocessing. More...
 
double originalLowerBound () const
 Original bounds. More...
 
void setOriginalLowerBound (double value)
 
double originalUpperBound () const
 
void setOriginalUpperBound (double value)
 
double breakEven () const
 Breakeven e.g 0.7 -> >= 0.7 go up first. More...
 
void setBreakEven (double value)
 Set breakeven e.g 0.7 -> >= 0.7 go up first. More...
 
- Public Member Functions inherited from CbcObject
 CbcObject ()
 
 CbcObject (CbcModel *model)
 
 CbcObject (const CbcObject &)
 
CbcObjectoperator= (const CbcObject &rhs)
 
virtual ~CbcObject ()
 Destructor. More...
 
virtual double feasibleRegion (OsiSolverInterface *solver) const
 For the variable(s) referenced by the object, look at the current solution and set bounds to match the solution. More...
 
virtual OsiBranchingObjectcreateBranch (OsiSolverInterface *, const OsiBranchingInformation *, int) const
 Create a branching object and indicate which way to branch first. More...
 
virtual OsiBranchingObjectcreateOsiBranch (OsiSolverInterface *solver, const OsiBranchingInformation *info, int way) const
 Create an Osibranching object and indicate which way to branch first. More...
 
virtual OsiSolverBranchsolverBranch () const
 Create an OsiSolverBranch object. More...
 
virtual CbcBranchingObjectpreferredNewFeasible () const
 Given a valid solution (with reduced costs, etc.), return a branching object which would give a new feasible point in a good direction. More...
 
virtual CbcBranchingObjectnotPreferredNewFeasible () const
 Given a valid solution (with reduced costs, etc.), return a branching object which would give a new feasible point in a bad direction. More...
 
virtual void floorCeiling (double &floorValue, double &ceilingValue, double value, double tolerance) const
 Returns floor and ceiling i.e. More...
 
virtual CbcObjectUpdateData createUpdateInformation (const OsiSolverInterface *solver, const CbcNode *node, const CbcBranchingObject *branchingObject)
 Pass in information on branch just done and create CbcObjectUpdateData instance. More...
 
virtual void updateInformation (const CbcObjectUpdateData &)
 Update object by CbcObjectUpdateData. More...
 
int id () const
 Identifier (normally column number in matrix) More...
 
void setId (int value)
 Set identifier (normally column number in matrix) but 1000000000 to 1100000000 means optional branching object i.e. More...
 
bool optionalObject () const
 Return true if optional branching object i.e. More...
 
int position () const
 Get position in object_ list. More...
 
void setPosition (int position)
 Set position in object_ list. More...
 
void setModel (CbcModel *model)
 update model More...
 
CbcModelmodel () const
 Return model. More...
 
int preferredWay () const
 If -1 down always chosen first, +1 up always, 0 normal. More...
 
void setPreferredWay (int value)
 Set -1 down always chosen first, +1 up always, 0 normal. More...
 
virtual void redoSequenceEtc (CbcModel *, int, const int *)
 Redoes data when sequence numbers change. More...
 
virtual void initializeForBranching (CbcModel *)
 Initialize for branching. More...
 
- Public Member Functions inherited from OsiObject
 OsiObject ()
 Default Constructor. More...
 
 OsiObject (const OsiObject &)
 Copy constructor. More...
 
OsiObjectoperator= (const OsiObject &rhs)
 Assignment operator. More...
 
virtual ~OsiObject ()
 Destructor. More...
 
double infeasibility (const OsiSolverInterface *solver, int &whichWay) const
 Infeasibility of the object. More...
 
virtual double checkInfeasibility (const OsiBranchingInformation *info) const
 
virtual bool canDoHeuristics () const
 Return true if object can take part in normal heuristics. More...
 
virtual bool canMoveToNearest () const
 Return true if object can take part in move to nearest heuristic. More...
 
int priority () const
 Return Priority - note 1 is highest priority. More...
 
void setPriority (int priority)
 Set priority. More...
 
virtual bool boundBranch () const
 Return true if branch should only bound variables. More...
 
virtual bool canHandleShadowPrices () const
 Return true if knows how to deal with Pseudo Shadow Prices. More...
 
int numberWays () const
 Return maximum number of ways branch may have. More...
 
void setNumberWays (int numberWays)
 Set maximum number of ways branch may have. More...
 
void setWhichWay (int way)
 Return preferred way to branch. More...
 
int whichWay () const
 Return current preferred way to branch. More...
 
double infeasibility () const
 Return infeasibility. More...
 
virtual double upEstimate () const
 Return "up" estimate (default 1.0e-5) More...
 
virtual double downEstimate () const
 Return "down" estimate (default 1.0e-5) More...
 
virtual void updateBefore (const OsiObject *)
 Updates stuff like pseudocosts before threads. More...
 
virtual void updateAfter (const OsiObject *, const OsiObject *)
 Updates stuff like pseudocosts after threads finished. More...
 

Additional Inherited Members

- Protected Attributes inherited from CbcSimpleInteger
double originalLower_
 data More...
 
double originalUpper_
 Original upper bound. More...
 
double breakEven_
 Breakeven i.e. >= this preferred is up. More...
 
int columnNumber_
 Column number in model. More...
 
int preferredWay_
 If -1 down always chosen first, +1 up always, 0 normal. More...
 
- Protected Attributes inherited from CbcObject
CbcModelmodel_
 data More...
 
int id_
 Identifier (normally column number in matrix) More...
 
int position_
 Position in object list. More...
 
int preferredWay_
 If -1 down always chosen first, +1 up always, 0 normal. More...
 
- Protected Attributes inherited from OsiObject
double infeasibility_
 data More...
 
short whichWay_
 Computed preferred way to branch. More...
 
short numberWays_
 Maximum number of ways on branch. More...
 
int priority_
 Priority. More...
 

Detailed Description

Define a single integer class where branching is forced until fixed.

Definition at line 64 of file CbcBranchUser.hpp.

Constructor & Destructor Documentation

CbcSimpleIntegerFixed::CbcSimpleIntegerFixed ( )
CbcSimpleIntegerFixed::CbcSimpleIntegerFixed ( CbcModel model,
int  iColumn,
double  breakEven = 0.5 
)
CbcSimpleIntegerFixed::CbcSimpleIntegerFixed ( const CbcSimpleInteger simple)
CbcSimpleIntegerFixed::CbcSimpleIntegerFixed ( const CbcSimpleIntegerFixed )
CbcSimpleIntegerFixed::~CbcSimpleIntegerFixed ( )

Member Function Documentation

virtual CbcObject* CbcSimpleIntegerFixed::clone ( ) const
virtual

Clone.

Reimplemented from CbcSimpleInteger.

CbcSimpleIntegerFixed& CbcSimpleIntegerFixed::operator= ( const CbcSimpleIntegerFixed rhs)
virtual double CbcSimpleIntegerFixed::infeasibility ( int &  preferredWay) const
virtual

Infeasibility - large is 0.5.

Reimplemented from CbcObject.

virtual CbcBranchingObject* CbcSimpleIntegerFixed::createBranch ( OsiSolverInterface solver,
const OsiBranchingInformation info,
int  way 
)
virtual

Creates a branching object.

The preferred direction is set by way, -1 for down, +1 for up.Create a branching object and indicate which way to branch first.

The branching object has to know how to create branches (fix variables, etc.)


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