qr-methods: QR Decomposition -- S4 Methods and Generic
Description
The "Matrix" package provides methods for the QR decomposition
of special classes of matrices. There is a generic function which uses
qr as default, but methods defined in this package
can take extra arguments. In particular there is an option for
determining a fill-reducing permutation of the columns of a sparse,
rectangular matrix.See Also
qr, sparseQR,
dgCMatrix