Matrix (version 0.999375-2)

sparseQR-class: Sparse QR decomposition of a sparse matrix

Description

Objects of this class represent a QR decomposition of a sparse rectangular matrix.

Objects from the Class

Objects can be created by calls of the form new("sparseQR", ...) but are more commonly created by function qr applied to a sparse matrix such as a matrix of class dgCMatrix.

See Also

qr, qr.Q, qr.R, qr.fitted, qr.resid, qr.coef, qr.qty, qr.qy, dgCMatrix, dgeMatrix.

Examples

data(KNex); mm <- KNex$mm
str(mmQR <- qr(mm))