QR Decomposition Object
- DESCRIPTION:
-
These are objects of class
"qr.Matrix"
They represent the QR decomposition of a matrix.
- GENERATION:
-
This class of objects is returned from the qr.Matrix function
to represent a QR decomposition.
- METHODS:
-
The "qr.Matrix" class of objects has methods for the following generic
functions:
det, expand, facmul, rcond, solve
- STRUCTURE:
-
The following component must be included in a legitimate "qr.Matrix" object:
- factors:
-
a list composed of two unnamed components. The first element of this list
is a matrix which has the R factor of the QR decomposition in its upper
triangle and information on the transformations whose product make up the
orthogonal Q factor in its lower triangle. The second element of the list is
a vector of auxiliary information needed to apply or reconstruct the
orthogonal or Q factor of the QR decomposition.
The following component may also be included in a "qr.Matrix" object:
- pivot:
-
if pivoting is requested, this is the column permutation applied to the
original matrix to achieve the QR decomposition.
- SEE ALSO:
-
qr.Matrix