QR Class Template Reference
[QR module]

List of all members.

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Detailed Description

template<typename MatrixType>
class Eigen::QR< MatrixType >

QR decomposition of a matrix.

Warning:

This is not considered to be part of the stable public API yet. Changes may happen in future releases. See Experimental parts of Eigen

Parameters:

MatrixType

the type of the matrix of which we are computing the QR decomposition

This class performs a QR decomposition using Householder transformations. The result is stored in a compact way compatible with LAPACK.

See also:

MatrixBase::qr()

Public Types
typedef Block< MatrixType, MatrixType::ColsAtCompileTime, MatrixType::ColsAtCompileTime >	MatrixRBlockType
typedef Matrix< Scalar, MatrixType::ColsAtCompileTime, MatrixType::ColsAtCompileTime >	MatrixTypeR
typedef MatrixType::RealScalar	RealScalar
typedef MatrixType::Scalar	Scalar
typedef Matrix< Scalar, MatrixType::ColsAtCompileTime, 1 >	VectorType
Public Member Functions
bool	isFullRank () const
MatrixType	matrixQ (void) const
const Part< NestByValue < MatrixRBlockType > , UpperTriangular >	matrixR (void) const
	QR (const MatrixType &matrix)
int	rank () const
Protected Attributes
VectorType	m_hCoeffs
MatrixType	m_qr
int	m_rank
bool	m_rankIsUptodate

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Member Function Documentation

bool isFullRank

(

)

const [inline]

Returns:

whether or not the matrix is of full rank

MatrixType matrixQ

(

void

)

const [inline]

Returns:

the matrix Q

const Part<NestByValue<MatrixRBlockType>, UpperTriangular> matrixR

(

void

)

const [inline]

Returns:

a read-only expression of the matrix R of the actual the QR decomposition

int rank

(

)

const [inline]

Returns:

the rank of the matrix of which *this is the QR decomposition.

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

• QR