dgeMatrix-class {Matrix} R Documentation

## 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"): ...

matrix products %*%, crossprod() and tcrossprod(), several solve methods, and other matrix methods available:

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

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") or norm = "missing": the reciprocal condition number, rcond().

rowMeans

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

rowSums

signature(x = "dgeMatrix"): rowwise sums

t

signature(x = "dgeMatrix"): matrix transpose

Classes Matrix, dtrMatrix, and dsyMatrix.

[Package Matrix version 1.5-3 Index]