Module ojalgo

Package org.ojalgo.matrix.decomposition

Interface MatrixDecomposition.Updatable<N extends Comparable<N>>

All Superinterfaces:

MatrixDecomposition<N>, Structure1D, Structure2D

All Known Subinterfaces:

LU<N>, QR<N>

All Known Implementing Classes:

DenseLU, DenseLU.C128, DenseLU.H256, DenseLU.Q128, DenseLU.R064, DenseLU.R128, DenseQR, DenseQR.C128, DenseQR.H256, DenseQR.Q128, DenseQR.R064, DenseQR.R128, RawLU, RawQR, SparseLU

Enclosing interface:

MatrixDecomposition<N extends Comparable<N>>

public static interface MatrixDecomposition.Updatable<N extends Comparable<N>>
extends MatrixDecomposition<N>

Nested Class Summary

Nested classes/interfaces inherited from interface org.ojalgo.matrix.decomposition.MatrixDecomposition

MatrixDecomposition.Determinant<N extends Comparable<N>>, MatrixDecomposition.EconomySize<N extends Comparable<N>>, MatrixDecomposition.Factory<D extends MatrixDecomposition<?>>, MatrixDecomposition.Hermitian<N extends Comparable<N>>, MatrixDecomposition.Ordered<N extends Comparable<N>>, MatrixDecomposition.Pivoting<N extends Comparable<N>>, MatrixDecomposition.RankRevealing<N extends Comparable<N>>, MatrixDecomposition.Solver<N extends Comparable<N>>, MatrixDecomposition.Updatable<N extends Comparable<N>>, MatrixDecomposition.Values<N extends Comparable<N>>

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

Structure1D.BasicMapper<T>, Structure1D.IndexMapper<T>, Structure1D.IntIndex, 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 inherited from interface org.ojalgo.matrix.decomposition.MatrixDecomposition

TYPICAL

Method Summary

Modifier and Type	Method	Description
boolean	updateColumn(int columnIndex, Access1D.Collectable<N,? super TransformableRegion<N>> newColumn)	Updates the decomposition when a column in the original matrix is replaced.

Methods inherited from interface org.ojalgo.matrix.decomposition.MatrixDecomposition

decompose, isComputed, reconstruct, reset

Methods inherited from interface org.ojalgo.structure.Structure2D

count, countColumns, countRows, firstInColumn, firstInRow, getColDim, getMaxDim, getMinDim, getRowDim, isEmpty, isFat, isScalar, isSquare, isTall, isVector, limitOfColumn, limitOfRow, size

Method Details

updateColumn

boolean updateColumn(int columnIndex,
 Access1D.Collectable<N,? super TransformableRegion<N>> newColumn)

Updates the decomposition when a column in the original matrix is replaced.

This method can only be called after an initial decomposition has been calculated.

If the updatable decomposition is a MatrixDecomposition.Solver then this method should only return true if MatrixDecomposition.Solver.isSolvable() is true after the update.

Parameters:

columnIndex - The index of the column, in the original matrix, to replace

newColumn - The new column values

Returns:

true if update was successful, false if not.