java.lang.Object
- org.ojalgo.optimisation.linear.SimplexStore
- - org.ojalgo.optimisation.linear.SimplexTableau
  - - org.ojalgo.optimisation.linear.SparseTableau

All Implemented Interfaces:

Access1D<java.lang.Double>, Access2D<java.lang.Double>, Mutate1D, Mutate2D, Structure1D, Structure2D
```
final class SparseTableau
extends SimplexTableau
```

Nested Class Summary
- Nested classes/interfaces inherited from class org.ojalgo.optimisation.linear.SimplexStore
  SimplexStore.ColumnState
- Nested classes/interfaces inherited from interface org.ojalgo.structure.Access2D
  Access2D.Aggregatable<N extends java.lang.Comparable<N>>, Access2D.Collectable<N extends java.lang.Comparable<N>,R extends Mutate2D>, Access2D.ColumnView<N extends java.lang.Comparable<N>>, Access2D.ElementView<N extends java.lang.Comparable<N>>, Access2D.RowView<N extends java.lang.Comparable<N>>, Access2D.SelectionView<N extends java.lang.Comparable<N>>, Access2D.Sliceable<N extends java.lang.Comparable<N>>, Access2D.Visitable<N extends java.lang.Comparable<N>>
- Nested classes/interfaces inherited from interface org.ojalgo.structure.Mutate1D
  Mutate1D.Sortable
- Nested classes/interfaces inherited from interface org.ojalgo.structure.Mutate2D
  Mutate2D.Exchangeable, Mutate2D.Fillable<N extends java.lang.Comparable<N>>, Mutate2D.Mixable<N extends java.lang.Comparable<N>>, Mutate2D.Modifiable<N extends java.lang.Comparable<N>>, Mutate2D.ModifiableReceiver<N extends java.lang.Comparable<N>>, Mutate2D.Receiver<N extends java.lang.Comparable<N>>
- Nested classes/interfaces inherited from interface org.ojalgo.structure.Structure1D
  Structure1D.BasicMapper<T>, Structure1D.IndexMapper<T>, Structure1D.IntIndex, Structure1D.Logical<S extends Structure1D,B extends Structure1D.Logical<S,B>>, Structure1D.LongIndex, Structure1D.LoopCallback
- Nested classes/interfaces inherited from interface org.ojalgo.structure.Structure2D
  Structure2D.IntRowColumn, Structure2D.Logical<S extends Structure2D,B extends Structure2D.Logical<S,B>>, Structure2D.LongRowColumn, Structure2D.ReducibleTo1D<R extends Structure1D>, Structure2D.Reshapable, Structure2D.RowColumnKey<R,C>, Structure2D.RowColumnMapper<R,C>

Field Summary

Fields
Modifier and Type	Field	Description
`private static Array1D.Factory<java.lang.Double>`	`ARRAY1D_FACTORY`
`private static PrimitiveArray.Factory`	`DENSE_FACTORY`
`private SparseArray<java.lang.Double>[]`	`myBody`
`private Array1D<java.lang.Double>`	`myObjective`
`private DenseArray<java.lang.Double>`	`myPhase1Objective`
`private double`	`myPhase1Value`
`private Array1D<java.lang.Double>`	`myRHS`
`private SparseArray.SparseFactory<java.lang.Double>`	`mySparseFactory`
`private double`	`myValue`

Fields inherited from class org.ojalgo.optimisation.linear.SimplexTableau
PRECISION

Fields inherited from class org.ojalgo.optimisation.linear.SimplexStore
edgeWeights, excluded, included, m, n, structure

Constructor Summary

Constructors
Constructor Description

SparseTableau(int mm, int nn)

SparseTableau(LinearStructure linearStructure)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) void`	`copyBasicSolution(double[] solution)`
`protected void`	`doPivot(int row, int col)`	Perform the pivot operation on the tableau – only.
`private void`	`doPivot(int row, int col, SparseArray<java.lang.Double> body, double rhs)`
`double`	`doubleValue(int row, int col)`	Extracts one element of this matrix as a double.
`(package private) double`	`extractValue()`
`(package private) boolean`	`fixVariable(int index, double value)`
`int`	`getColDim()`
`(package private) double`	`getInfeasibility()`
`(package private) double`	`getReducedCost(int je)`
`int`	`getRowDim()`
`(package private) double`	`getValue()`
`(package private) Primitive2D`	`newConstraintsBody()`
`(package private) Primitive1D`	`newConstraintsRHS()`
`(package private) Primitive1D`	`newObjective()`
`(package private) Primitive1D`	`phase1()`	The phase-1 objective function.
`(package private) void`	`removePhase1()`
`private static double`	`scale(SparseArray<java.lang.Double> body, double rhs, int col)`
`void`	`set(int row, int col, double value)`
`protected void`	`shiftColumn(int col, double shift)`

Methods inherited from class org.ojalgo.optimisation.linear.SimplexTableau
calculateDualDirection, calculateIteration, calculatePrimalDirection, constraintsBody, constraintsRHS, findNextPivotColumn, generateCutCandidates, get, getCost, getCurrentElement, getCurrentElement, getCurrentRHS, getInfeasibility, newSimplexTableauSolver, newTableauFactory, objective, pivot, pivot, prepareToIterate, resetBasis, set, setupClassicPhase1Objective, sliceBodyColumn, sliceBodyRow, sliceConstraintsRHS, sliceDualVariables, sliceTableauColumn, sliceTableauRow, toString, updateDualEdgeWeights, updatePrimalEdgeWeights, value

Methods inherited from class org.ojalgo.optimisation.linear.SimplexStore
countRemainingArtificials, extractSolution, generateCutCandidates, getColumnState, getLowerBound, getLowerBounds, getLowerGap, getRange, getUpperBound, getUpperBounds, getUpperGap, isArtificial, isExcluded, isIncluded, isNegated, isPrintable, isRemainingArtificials, lower, newDualSimplexSolver, newPhasedSimplexSolver, newPrimalSimplexSolver, newStoreFactory, resetEdgeWeights, unbounded, update, updateBasis, updateRange, upper

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.ojalgo.structure.Access1D
asCollectable1D, asKeyed1D, asList, axpy, dot, select, supplyTo, toList, toRawCopy1D

Methods inherited from interface org.ojalgo.structure.Access2D
asCollectable2D, asKeyed2D, byteValue, byteValue, byteValue, byteValue, columns, columns, columns, doubleValue, doubleValue, doubleValue, elements, floatValue, floatValue, floatValue, floatValue, get, intValue, intValue, intValue, intValue, longValue, longValue, longValue, longValue, nonzeros, rows, rows, rows, select, select, shortValue, shortValue, shortValue, shortValue, toRawCopy2D

Methods inherited from interface org.ojalgo.structure.Mutate1D
reset

Methods inherited from interface org.ojalgo.structure.Mutate2D
set, set, set, set, set, set, set, set, set, set, set, set, set, set, set, set, set, set, set, set, set, set, set, set

Methods inherited from interface org.ojalgo.structure.Structure2D
count, countColumns, countRows, firstInColumn, firstInRow, getMaxDim, getMinDim, isEmpty, isFat, isScalar, isSquare, isTall, isVector, limitOfColumn, limitOfRow, size

Field Detail

ARRAY1D_FACTORY

private static final Array1D.Factory<java.lang.Double> ARRAY1D_FACTORY

DENSE_FACTORY

private static final PrimitiveArray.Factory DENSE_FACTORY

myBody

private final SparseArray<java.lang.Double>[] myBody

myObjective

private final Array1D<java.lang.Double> myObjective

myPhase1Objective

private DenseArray<java.lang.Double> myPhase1Objective

myPhase1Value
```
private double myPhase1Value
```

myRHS

private final Array1D<java.lang.Double> myRHS

mySparseFactory

private final SparseArray.SparseFactory<java.lang.Double> mySparseFactory

myValue
```
private double myValue
```

Constructor Detail

SparseTableau

SparseTableau(int mm,
              int nn)

SparseTableau

SparseTableau(LinearStructure linearStructure)

Method Detail
- scale
```
private static double scale(SparseArray<java.lang.Double> body,
                            double rhs,
                            int col)
```
- doubleValue
```
public double doubleValue(int row,
                          int col)
```
  Description copied from interface: Access2D
  
  Extracts one element of this matrix as a double.
  
  Parameters:
  
  row - A row index.
  
  col - A column index.
  
  Returns:
  
  One matrix element
- getColDim
```
public int getColDim()
```
  Returns:
  
  The number of columns
- getRowDim
```
public int getRowDim()
```
  Returns:
  
  The number of rows
- set
```
public void set(int row,
                int col,
                double value)
```
- doPivot
```
private void doPivot(int row,
                     int col,
                     SparseArray<java.lang.Double> body,
                     double rhs)
```
- doPivot
```
protected void doPivot(int row,
                       int col)
```
  Description copied from class: SimplexTableau
  
  Perform the pivot operation on the tableau – only. Various auxiliary bookkeeping should NOT be done here.
  
  Specified by:
  
  doPivot in class SimplexTableau
- shiftColumn
```
protected void shiftColumn(int col,
                           double shift)
```
  Overrides:
  
  shiftColumn in class SimplexStore
- copyBasicSolution
```
void copyBasicSolution(double[] solution)
```
  Specified by:
  
  copyBasicSolution in class SimplexStore
- extractValue
```
double extractValue()
```
  Specified by:
  
  extractValue in class SimplexStore
- fixVariable
```
boolean fixVariable(int index,
                    double value)
```
  Specified by:
  
  fixVariable in class SimplexTableau
- getInfeasibility
```
double getInfeasibility()
```
  Specified by:
  
  getInfeasibility in class SimplexTableau
  
  Returns:
  
  The phase 1 objective function value
- getReducedCost
```
double getReducedCost(int je)
```
  Specified by:
  
  getReducedCost in class SimplexStore
- getValue
```
double getValue()
```
  Specified by:
  
  getValue in class SimplexTableau
  
  Returns:
  
  The (phase 2) objective function value
- newConstraintsBody
```
Primitive2D newConstraintsBody()
```
  Specified by:
  
  newConstraintsBody in class SimplexTableau
- newConstraintsRHS
```
Primitive1D newConstraintsRHS()
```
  Specified by:
  
  newConstraintsRHS in class SimplexTableau
- newObjective
```
Primitive1D newObjective()
```
  Specified by:
  
  newObjective in class SimplexTableau
- phase1
```
Primitive1D phase1()
```
  Description copied from class: SimplexStore
  
  The phase-1 objective function.
  
  Specified by:
  
  phase1 in class SimplexStore
- removePhase1
```
void removePhase1()
```
  Specified by:
  
  removePhase1 in class SimplexStore

Constructor	Description
`SparseTableau(int mm, int nn)`
`SparseTableau(LinearStructure linearStructure)`

Class SparseTableau

Nested Class Summary

Nested classes/interfaces inherited from class org.ojalgo.optimisation.linear.SimplexStore

Nested classes/interfaces inherited from interface org.ojalgo.structure.Access2D

Nested classes/interfaces inherited from interface org.ojalgo.structure.Mutate1D

Nested classes/interfaces inherited from interface org.ojalgo.structure.Mutate2D

Nested classes/interfaces inherited from interface org.ojalgo.structure.Structure1D

Nested classes/interfaces inherited from interface org.ojalgo.structure.Structure2D

Field Summary

Fields inherited from class org.ojalgo.optimisation.linear.SimplexTableau

Fields inherited from class org.ojalgo.optimisation.linear.SimplexStore

Constructor Summary

Method Summary

Methods inherited from class org.ojalgo.optimisation.linear.SimplexTableau

Methods inherited from class org.ojalgo.optimisation.linear.SimplexStore

Methods inherited from class java.lang.Object

Methods inherited from interface org.ojalgo.structure.Access1D

Methods inherited from interface org.ojalgo.structure.Access2D

Methods inherited from interface org.ojalgo.structure.Mutate1D

Methods inherited from interface org.ojalgo.structure.Mutate2D

Methods inherited from interface org.ojalgo.structure.Structure2D

Field Detail

ARRAY1D_FACTORY

DENSE_FACTORY

myBody

myObjective

myPhase1Objective

myPhase1Value

myRHS

mySparseFactory

myValue

Constructor Detail

SparseTableau

SparseTableau

Method Detail

scale

doubleValue

getColDim

getRowDim

set

doPivot

doPivot

shiftColumn

copyBasicSolution

extractValue

fixVariable

getInfeasibility

getReducedCost

getValue

newConstraintsBody

newConstraintsRHS

newObjective

phase1

removePhase1