Class "dgeMatrix" of Dense Numeric (S4 Class) Matrices

Description

A general numeric dense matrix in the S4 Matrix representation. dgeMatrix is the “standard” class for dense numeric matrices in the Matrix package.

Objects from the Class

Objects can be created by calls of the form new("dgeMatrix", ...) or, more commonly, by coercion from the Matrix class (see Matrix) or by Matrix(..).

Slots

x:

Object of class "numeric" - the numeric values contained in the matrix, in column-major order.

Dim:

Object of class "integer" - the dimensions of the matrix - must be an integer vector with exactly two non-negative values.

Dimnames:

a list of length two - inherited from class Matrix.

factors:

Object of class "list" - a list of factorizations of the matrix.

Methods

The are group methods (see, e.g., Arith)

Arith

signature(e1 = "dgeMatrix", e2 = "dgeMatrix"): ...

Arith

signature(e1 = "dgeMatrix", e2 = "numeric"): ...

Arith

signature(e1 = "numeric", e2 = "dgeMatrix"): ...

Math

signature(x = "dgeMatrix"): ...

Math2

signature(x = "dgeMatrix", digits = "numeric"): ...

and other matrix methods available:

%*%

signature(x = "dgeMatrix", y = "dgeMatrix"): Matrix multiplication; ditto for several other signature combinations, see showMethods("%*%", class = "dgeMatrix").

Schur

signature(x = "dgeMatrix", vectors = "logical"): ...

Schur

signature(x = "dgeMatrix", vectors = "missing"): ...

chol

signature(x = "dgeMatrix"): see chol.

coerce

signature(from = "dgeMatrix", to = "lgeMatrix"): ...

coerce

signature(from = "dgeMatrix", to = "matrix"): ...

coerce

signature(from = "matrix", to = "dgeMatrix"): ...

colMeans

signature(x = "dgeMatrix"): columnwise means (averages)

colSums

signature(x = "dgeMatrix"): columnwise sums

crossprod

signature(x = "dgeMatrix", y = "dgeMatrix"): ditto for several other signatures, use showMethods("crossprod", class = "dgeMatrix"), matrix crossproduct, an efficient version of t(x) %*% y.

diag

signature(x = "dgeMatrix"): ...

dim

signature(x = "dgeMatrix"): ...

dimnames

signature(x = "dgeMatrix"): ...

eigen

signature(x = "dgeMatrix", only.values= "logical"): ...

eigen

signature(x = "dgeMatrix", only.values= "missing"): ...

norm

signature(x = "dgeMatrix", type = "character"): ...

norm

signature(x = "dgeMatrix", type = "missing"): ...

rcond

signature(x = "dgeMatrix", norm = "character"): ...

rcond

signature(x = "dgeMatrix", norm = "missing"): ...

rowMeans

signature(x = "dgeMatrix"): rowwise means (averages)

rowSums

signature(x = "dgeMatrix"): rowwise sums

solve

signature(a = "dgeMatrix", b = "dgeMatrix"): ...

solve

signature(a = "dgeMatrix", b = "missing"): ...

t

signature(x = "dgeMatrix"): ...

See Also

Classes Matrix, dtrMatrix, and dsyMatrix.