Matrix (version 0.99-3)

LU-class: LU Matrix Decompositions

Description

The "LU" class is the class of LU decompositions of real matrices.

Objects from the Class

Objects can be created by calls of the form new("LU", ...). More commonly the objects are created explicitly from calls of the form lu(mm) where mm is an object that inherits from the "dgeMatrix" class or as a side-effect of other functions applied to "dgeMatrix" objects.

See Also

dgeMatrix-class, lu, expand

Examples

mm <- Matrix(round(rnorm(9),2), nrow = 3, ncol = 3)
mm
str(lum <- lu(mm))
elu <- expand(lum)
elu
elu$L %*% elu$U