Module ojalgo

Package org.ojalgo.optimisation.convex

Class ConvexData<N extends java.lang.Comparable<N>>

java.lang.Object

org.ojalgo.optimisation.convex.ConvexData<N>

All Implemented Interfaces:

ExpressionsBasedModel.EntityMap, Optimisation, Optimisation.ProblemStructure

public final class ConvexData<N extends java.lang.Comparable<N>>
extends java.lang.Object
implements ExpressionsBasedModel.EntityMap

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static interface	ConvexData.ConvexDataFactory<N extends java.lang.Comparable<N>>

Nested classes/interfaces inherited from interface org.ojalgo.optimisation.Optimisation

Optimisation.Constraint, Optimisation.ConstraintType, Optimisation.Integration<M extends Optimisation.Model,S extends Optimisation.Solver>, Optimisation.Model, Optimisation.Objective, Optimisation.Options, Optimisation.ProblemStructure, Optimisation.Result, Optimisation.Sense, Optimisation.Solver, Optimisation.State

Field Summary

Fields

Modifier and Type	Field	Description
private RowsSupplier<N>	myAE
private RowsSupplier<N>	myAI
private PhysicalStore<N>	myBE
private PhysicalStore<N>	myBI
private ConstraintsMetaData	myConstraintsMetaData
private ConvexObjectiveFunction<N>	myObjective
private int[]	myVariableIndices

Fields inherited from interface org.ojalgo.optimisation.Optimisation.ProblemStructure

DEBUG

Constructor Summary

Constructors

Constructor	Description
ConvexData(boolean inclMap, PhysicalStore.Factory<N,?> factory, int nbVars, int nbEqus, int nbInes)

Method Summary

Modifier and Type	Method	Description
(package private) void	addObjective(int row, double value)
(package private) void	addObjective(int row, int col, double value)
(package private) void	addObjective(int row, int col, java.lang.Comparable<?> value)
(package private) void	addObjective(int row, java.lang.Comparable<?> value)
int	countAdditionalConstraints()	Not included in Optimisation.ProblemStructure.countConstraints() (because they are not simple linear equality or inequality constraints),
int	countConstraints()
int	countEqualityConstraints()
int	countInequalityConstraints()
int	countModelVariables()	The number of variables, in the solver, that directly correspond to a model variable.
int	countSlackVariables()	The number of slack variables.
int	countVariables()
(package private) double	density()	The density of the constraints body (AE and AI combined).
PhysicalStore<N>	getAE()	Equality constraints body: [AE][X] == [BE]
(package private) SparseArray<N>	getAE(int row)
(package private) RowsSupplier<N>	getAE(int... rows)
(package private) PhysicalStore<N>	getAI()	Inequality constraints body: [AI][X] <= [BI]
(package private) SparseArray<N>	getAI(int row)
(package private) RowsSupplier<N>	getAI(int... rows)
MatrixStore<N>	getBE()	Equality constraints RHS: [AE][X] == [BE]
double	getBE(int row)
MatrixStore<N>	getBI()	Inequality constraints RHS: [AI][X] <= [BI]
double	getBI(int row)
EntryPair<ModelEntity<?>,Optimisation.ConstraintType>	getConstraint(int idc)
(package private) ConstraintsMetaData	getConstraintsMetaData()
double	getDensityAE()
double	getDensityAI()
ConvexObjectiveFunction<N>	getObjective()
Access2D.RowView<N>	getRowsAE()
Access2D.RowView<N>	getRowsAI()
EntryPair<ModelEntity<?>,Optimisation.ConstraintType>	getSlack(int ids)	Returns which model entity, and constraint type, that corresponds to the slack variable at the supplied index.
(package private) ElementsSupplier<N>	getSupplierAE()	Equality constraints body: [AE][X] == [BE]
(package private) ElementsSupplier<N>	getSupplierAI()	Inequality constraints body: [AI][X] == [BI]
int	indexOf(int idm)	Converts from a solver specific variable index to the corresponding index of the variable in the model.
boolean	isNegated(int idm)	Is this solver variable negated relative to the corresponding model variable?
(package private) void	reset()
(package private) void	setAE(int row, int col, double value)
(package private) void	setAE(int row, int col, java.lang.Comparable<?> value)
(package private) void	setAI(int row, int col, double value)
(package private) void	setAI(int row, int col, java.lang.Comparable<?> value)
(package private) void	setBE(int row, double value)
(package private) void	setBE(int row, ModelEntity<?> entity, Optimisation.ConstraintType type, java.lang.Comparable<?> value, boolean negated)
(package private) void	setBI(int row, double value)
(package private) void	setBI(int row, ModelEntity<?> entity, Optimisation.ConstraintType type, java.lang.Comparable<?> value, boolean negated)
(package private) void	setEntry(int row, ModelEntity<?> entity, Optimisation.ConstraintType type, boolean neg)
(package private) void	setObjective(int row, double value)
(package private) void	setObjective(int row, int col, double value)
(package private) void	setObjective(int row, int col, java.lang.Comparable<?> value)
(package private) void	setObjective(int row, java.lang.Comparable<?> value)
(package private) void	setVariableIndices(int indexInSolver, int indexInModel)
(package private) void	update(Access1D<?> mtrxC, Access1D<?> mtrxBE, Access1D<?> mtrxBI)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

myAE

private final RowsSupplier<N extends java.lang.Comparable<N>> myAE

myAI

private final RowsSupplier<N extends java.lang.Comparable<N>> myAI

myBE

private final PhysicalStore<N extends java.lang.Comparable<N>> myBE

myBI

private final PhysicalStore<N extends java.lang.Comparable<N>> myBI

myConstraintsMetaData

private final ConstraintsMetaData myConstraintsMetaData

myObjective

private final ConvexObjectiveFunction<N extends java.lang.Comparable<N>> myObjective

myVariableIndices

private final int[] myVariableIndices

Constructor Detail

ConvexData

ConvexData(boolean inclMap,
           PhysicalStore.Factory<N,?> factory,
           int nbVars,
           int nbEqus,
           int nbInes)

Method Detail

countAdditionalConstraints

public int countAdditionalConstraints()

Description copied from interface: Optimisation.ProblemStructure

Not included in Optimisation.ProblemStructure.countConstraints() (because they are not simple linear equality or inequality constraints),

Specified by:

countAdditionalConstraints in interface Optimisation.ProblemStructure

countConstraints

public int countConstraints()

Specified by:

countConstraints in interface Optimisation.ProblemStructure

countEqualityConstraints

public int countEqualityConstraints()

Specified by:

countEqualityConstraints in interface Optimisation.ProblemStructure

countInequalityConstraints

public int countInequalityConstraints()

Specified by:

countInequalityConstraints in interface Optimisation.ProblemStructure

countModelVariables

public int countModelVariables()

Description copied from interface: ExpressionsBasedModel.EntityMap

The number of variables, in the solver, that directly correspond to a model variable. (Not slack or artificial variables.)

This defines the range of the indices that can be used with the ExpressionsBasedModel.EntityMap.indexOf(int) and ExpressionsBasedModel.EntityMap.isNegated(int) methods.

Specified by:

countModelVariables in interface ExpressionsBasedModel.EntityMap

countSlackVariables

public int countSlackVariables()

Description copied from interface: ExpressionsBasedModel.EntityMap

The number of slack variables.

This defines the range of the indices that can be used with the ExpressionsBasedModel.EntityMap.getSlack(int) method.

Specified by:

countSlackVariables in interface ExpressionsBasedModel.EntityMap

countVariables

public int countVariables()

Specified by:

countVariables in interface Optimisation.ProblemStructure

getAE

public PhysicalStore<N> getAE()

Equality constraints body: [AE][X] == [BE]

getBE

public MatrixStore<N> getBE()

Equality constraints RHS: [AE][X] == [BE]

getBE

public double getBE(int row)

getBI

public MatrixStore<N> getBI()

Inequality constraints RHS: [AI][X] <= [BI]

getBI

public double getBI(int row)

getConstraint

public EntryPair<ModelEntity<?>,Optimisation.ConstraintType> getConstraint(int idc)

Specified by:

getConstraint in interface ExpressionsBasedModel.EntityMap

getDensityAE

public double getDensityAE()

getDensityAI

public double getDensityAI()

getObjective

public ConvexObjectiveFunction<N> getObjective()

getRowsAE

public Access2D.RowView<N> getRowsAE()

getRowsAI

public Access2D.RowView<N> getRowsAI()

getSlack

public EntryPair<ModelEntity<?>,Optimisation.ConstraintType> getSlack(int ids)

Description copied from interface: ExpressionsBasedModel.EntityMap

Returns which model entity, and constraint type, that corresponds to the slack variable at the supplied index.

Specified by:

getSlack in interface ExpressionsBasedModel.EntityMap

Parameters:

ids - Index of solver slack variable (If there are 3 slack variables this input argument should be in the range [0.2].)

indexOf

public int indexOf(int idm)

Description copied from interface: ExpressionsBasedModel.EntityMap

Converts from a solver specific variable index to the corresponding index of the variable in the model. Note that not all model variables are necessarily represented in the solver, and a model variable may result in multiple solver variables. Further, slack variables, artificial variables and such are typically not represented in the model.

Specified by:

indexOf in interface ExpressionsBasedModel.EntityMap

Parameters:

idm - Index of solver variable

Returns:

Index of model variable (negative if no map)

isNegated

public boolean isNegated(int idm)

Description copied from interface: ExpressionsBasedModel.EntityMap

Is this solver variable negated relative to the corresponding model variable?

Specified by:

isNegated in interface ExpressionsBasedModel.EntityMap

Parameters:

idm - Index of solver variable

Returns:

true if this solver variable represents a negated model variable

addObjective

void addObjective(int row,
                  java.lang.Comparable<?> value)

addObjective

void addObjective(int row,
                  double value)

addObjective

void addObjective(int row,
                  int col,
                  java.lang.Comparable<?> value)

addObjective

void addObjective(int row,
                  int col,
                  double value)

density

double density()

The density of the constraints body (AE and AI combined).

getAE

SparseArray<N> getAE(int row)

getAE

RowsSupplier<N> getAE(int... rows)

getAI

PhysicalStore<N> getAI()

Inequality constraints body: [AI][X] <= [BI]

getAI

SparseArray<N> getAI(int row)

getAI

RowsSupplier<N> getAI(int... rows)

getConstraintsMetaData

ConstraintsMetaData getConstraintsMetaData()

getSupplierAE

ElementsSupplier<N> getSupplierAE()

Equality constraints body: [AE][X] == [BE]

getSupplierAI

ElementsSupplier<N> getSupplierAI()

Inequality constraints body: [AI][X] == [BI]

reset

void reset()

setAE

void setAE(int row,
           int col,
           java.lang.Comparable<?> value)

setAE

void setAE(int row,
           int col,
           double value)

setAI

void setAI(int row,
           int col,
           java.lang.Comparable<?> value)

setAI

void setAI(int row,
           int col,
           double value)

setBE

void setBE(int row,
           double value)

setBE

void setBE(int row,
           ModelEntity<?> entity,
           Optimisation.ConstraintType type,
           java.lang.Comparable<?> value,
           boolean negated)

setBI

void setBI(int row,
           double value)

setBI

void setBI(int row,
           ModelEntity<?> entity,
           Optimisation.ConstraintType type,
           java.lang.Comparable<?> value,
           boolean negated)

setEntry

void setEntry(int row,
              ModelEntity<?> entity,
              Optimisation.ConstraintType type,
              boolean neg)

setObjective

void setObjective(int row,
                  java.lang.Comparable<?> value)

setObjective

void setObjective(int row,
                  double value)

setObjective

void setObjective(int row,
                  int col,
                  java.lang.Comparable<?> value)

setObjective

void setObjective(int row,
                  int col,
                  double value)

setVariableIndices

void setVariableIndices(int indexInSolver,
                        int indexInModel)

update

void update(Access1D<?> mtrxC,
            Access1D<?> mtrxBE,
            Access1D<?> mtrxBI)