Constructor and Description |
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OldQRDecomposition(Matrix a)
Constructs and returns a new QR decomposition object; computed by Householder reflections; The decomposed matrices
can be retrieved via instance methods of the returned decomposition object.
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Modifier and Type | Method and Description |
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Matrix |
getQ()
Generates and returns the (economy-sized) orthogonal factor Q.
|
Matrix |
getR()
Returns the upper triangular factor, R.
|
boolean |
hasFullRank()
Returns whether the matrix A has full rank.
|
Matrix |
solve(Matrix B)
Least squares solution of A*X = B; returns X.
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String |
toString()
Returns a rough string rendition of a QR.
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public OldQRDecomposition(Matrix a)
a
- A rectangular matrix.IllegalArgumentException
- if A.rows() < A.columns()
public Matrix getQ()
public Matrix getR()
public boolean hasFullRank()
hasFullRank
in interface QR
public Matrix solve(Matrix B)
solve
in interface QR
B
- A matrix with as many rows as A and any number of columns.IllegalArgumentException
- if B.rows() != A.rows().Copyright © 2008–2017 The Apache Software Foundation. All rights reserved.