Description Slots Methods See Also Examples
The nMatrix
class is the virtual “mother” class of all
non-zero pattern (or simply pattern)
matrices in the Matrix package.
Common to all matrix object in the package:
Dim
:Object of class "integer"
- the dimensions
of the matrix - must be an integer vector with exactly two
non-negative values.
Dimnames
:list of length two; each component
containing NULL or a character
vector length
equal the corresponding Dim
element.
There is a bunch of coercion methods (for as(..)
), e.g.,
signature(from = "matrix", to = "nMatrix")
:
Note that these coercions (must) coerce NA
s to
non-zero, hence conceptually TRUE
.
This is particularly important when
sparseMatrix
objects are coerced to
"nMatrix"
and hence to nsparseMatrix
.
signature(from = "dMatrix", to = "nMatrix")
, and
signature(from = "lMatrix", to = "nMatrix")
:
For dense matrices with NA
s, these
coercions are valid since Matrix version 1.2.0 (still with
a warning
or a message
if
"Matrix.warn"
, or "Matrix.verbose"
options
are set.)
signature(from = "nMatrix", to = "matrix")
: ...
signature(from = "nMatrix", to = "dMatrix")
: ...
signature(from = "nMatrix", to = "lMatrix")
: ...
— — —
Additional methods contain group methods, such as
signature(e1 = "nMatrix", e2 = "....")
, ...
signature(e1 = "nMatrix", e2 = "....")
, ...
signature(e1 = "nMatrix", e2 = "....")
, ...
signature(e1 = "nMatrix", e2 = "....")
, ...
signature(x = "nMatrix", "....")
, ...
The classes lMatrix
,
nsparseMatrix
, and the mother class,
Matrix
.
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