compMatrix-class {Matrix} | R Documentation |

## Class "compMatrix" of Composite (Factorizable) Matrices

### Description

Virtual class of *composite* matrices; i.e., matrices
that can be *factorized*, typically as a product of simpler
matrices.

### Objects from the Class

A virtual Class: No objects may be created from it.

### Slots

`factors`

:Object of class `"list"`

- a list of
factorizations of the matrix. Note that this is typically empty,
i.e., `list()`

, initially and is *updated
***automagically** whenever a matrix factorization is computed.

`Dim`

, `Dimnames`

:inherited from the
`Matrix`

class, see there.

### Extends

Class `"Matrix"`

, directly.

### Methods

- dimnames<-
`signature(x = "compMatrix", value = "list")`

: set
the `dimnames`

to a `list`

of length 2, see
`dimnames<-`

. The `factors`

slot is currently reset to
empty, as the factorization `dimnames`

would have to be adapted, too.

### See Also

The matrix factorization classes
`"MatrixFactorization"`

and their generators,
`lu()`

,
`qr()`

,
`chol()`

and `Cholesky()`

,
`BunchKaufman()`

, `Schur()`

.

[Package

*Matrix* version 1.5-3

Index]