Description
Contains the results of a QR decomposition from using the qr()
method on a gmatrix
object. Note that the gmatrix
solve
function uses QR decompostion. Also, qr.coef
can act on the gqr
object. The qr
method does not use pivoting or check the matrix rank. The QR and related methods are only available for cuda v7.0 or greater.
Objects from the Class
Objects can be created by calls of the qr()
method.Slots
qr
:- Information about the Q and R matrices stored as and bject of class
"gmatrix"
. qraux
:- Information about the Q matrix stored as an object of class
"gvector"
.
Methods
- qr.coef
- Simular to the
qr.coef
function. - solve
- Simular to the
solve.qr
function.
Examples
M=gmatrix(grnorm(25), 5,5,dup=FALSE)
y=grnorm(5)
solve(M)
solve(M,y)
myqr =qr(M)
solve(myqr,y)