Matrix (version 0.999375-46)

Matrix-class: Virtual Class "Matrix" Class of Matrices

Description

The Matrix class is a class contained by all actual classes in the Matrix package. It is a virtual class.

See Also

the classes dgeMatrix, dgCMatrix, and function Matrix for construction (and examples).

Methods, e.g., for kronecker.

Examples

slotNames("Matrix")

cl <- getClass("Matrix")
names(cl@subclasses) # more than 40 ..

showClass("Matrix")#> output with slots and all subclasses

(M <- Matrix(c(0,1,0,0), 6, 4))
dim(M)
diag(M)
cm <- M[1:4,] + 10*Diagonal(4)
diff(M)
## can reshape it even :
dim(M) <- c(2, 12)
M
stopifnot(identical(M, Matrix(c(0,1,0,0), 2,12)),
          all.equal(det(cm),
                    determinant(as(cm,"matrix"), log=FALSE)$modulus,
                    check.attr=FALSE))