lsyMatrix-class | R Documentation |

The `"lsyMatrix"`

class is the class of symmetric, dense logical
matrices in non-packed storage and `"lspMatrix"`

is the class of
of these in packed storage. In the packed form, only the upper
triangle or the lower triangle is stored.

Objects can be created by calls of the form `new("lsyMatrix", ...)`

.

`uplo`

:Object of class

`"character"`

. Must be either "U", for upper triangular, and "L", for lower triangular.`x`

:Object of class

`"logical"`

. The logical values that constitute the matrix, stored in column-major order.`Dim`

,`Dimnames`

:The dimension (a length-2

`"integer"`

) and corresponding names (or`NULL`

), see the`Matrix`

class.`factors`

:Object of class

`"list"`

. A named list of factorizations that have been computed for the matrix.

Both extend classes `"ldenseMatrix"`

and
`"symmetricMatrix"`

, directly; further, class
`"Matrix"`

and others, *in*directly. Use
`showClass("lsyMatrix")`

, e.g., for details.

Currently, mainly `t()`

and coercion methods (for
`as(.)`

; use, e.g.,
`showMethods(class="dsyMatrix")`

for details.

`lgeMatrix`

, `Matrix`

,
`t`

(M2 <- Matrix(c(TRUE, NA, FALSE, FALSE), 2, 2)) # logical dense (ltr) str(M2) # can (sM <- M2 | t(M2)) # "lge" as(sM, "symmetricMatrix") str(sM <- as(sM, "packedMatrix")) # packed symmetric

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