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Matrix (version 0.999375-8)

A Matrix package for R

Description

Classes and methods for dense and sparse matrices and operations on them using Lapack, CSparse and CHOLMOD

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Version

Install

install.packages('Matrix')

Monthly Downloads

118,373

Version

0.999375-8

License

GPL (>= 2)

Maintainer

Doug

Last Published

March 11th, 2025

Functions in Matrix (0.999375-8)

LU-class

LU (dense) Matrix Decompositions

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

cBind

Versions of 'cbind' and 'rbind' recursively built on cbind2/rbind2

externalFormats

Read and write external matrix formats

BunchKaufman-methods

Bunch-Kaufman Decomposition Methods

CAex

Albers' example Matrix with "Difficult" Eigen Factorization

Hilbert

Generate a Hilbert matrix

forceSymmetric

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

nMatrix-class

Class "nMatrix" of Non-zero Pattern Matrices

dtpMatrix-class

Packed triangular dense matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

Cholesky

Cholesky Decomposition of a Sparse Matrix

nearPD

Nearest Matrix to a Positive Definite Matrix

Triangular Decomposition of a Square Matrix

dsyMatrix-class

Symmetric Dense Numeric Matrices

Schur-class

Class "Schur" of Schur Matrix Factorizations

Cholesky-class

Cholesky and Bunch-Kaufman Decompositions

rcond

Estimate the Reciprocal Condition Number

CHMfactor-class

CHOLMOD-based Cholesky Factorizations

RsparseMatrix-class

Class "RsparseMatrix" of Sparse Matrices in Column-compressed Form

bdiag

Construct a Block Diagonal Matrix

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

SparseM-conversions

Sparse Matrix Coercion from and to those from package "SparseM"

lsyMatrix-class

Symmetric Dense Logical Matrices

generalMatrix-class

Class "generalMatrix" of General Matrices

norm

Matrix Norms

[<--methods

Methods for "[<-" - Assigning to Subsets for 'Matrix'

dtCMatrix-class

Triangular, (compressed) sparse column matrices

printSpMatrix

Print Sparse Matrices Flexibly

dgTMatrix-class

Sparse matrices in triplet form

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

Matrix-class

Virtual Class "Matrix" Class of Matrices

unpack

Full Storage Representation of Packed Matrices

Schur

Schur Decomposition of a Matrix

expm

Matrix exponential

all-methods

"Matrix" Methods for Functions all() and any()

symmpart

Symmetric Part and Skew(symmetric) Part of a Matrix

chol

Choleski Decomposition - 'Matrix' S4 Generic

drop0

Drop "Explicit Zeroes" from a Sparse Matrix

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

Diagonal

Create Diagonal Matrix Object

ntrMatrix-class

Triangular Dense Logical Matrices

sparseLU-class

Sparse LU decomposition of a square sparse matrix

qr-methods

QR Decomposition -- S4 Methods and Generic

colSums

Form Row and Column Sums and Means

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

dpoMatrix-class

Positive Semi-definite Dense Numeric Matrices

[-methods

Methods for "[": Extraction or Subsetting in Package 'Matrix'

triangularMatrix-class

Virtual Class of Triangular Matrices in package:Matrix

replValue-class

Virtual Class "replValue" - Simple Class for subassignment Values

ltrMatrix-class

Triangular Dense Logical Matrices

MatrixFactorization-class

Class "MatrixFactorization" of Matrix Factorizations

xtabs

Cross Tabulation, Optionally Sparse

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

expand

Expand a Decomposition into Factors

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

USCounties

USCounties Contiguity Matrix

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

CsparseMatrix-class

Class "CsparseMatrix" of Sparse Matrices in Column-compressed Form

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

facmul

Multiplication by Decomposition Factors

KNex

Koenker-Ng Example Sparse Model Matrix and Response Vector

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

tcrossprod

Cross-product of transpose

image-methods

Methods for image() in Package 'Matrix'

band

Extract bands of a matrix

index-class

Virtual Class "index" - Simple Class for Matrix Indices

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

sparseQR-class

Sparse QR decomposition of a sparse matrix

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

nnzero

The Number of Non-Zero Values of a Matrix

symmetricMatrix-class

Virtual Class of Symmetric Matrices in package:Matrix

is.na-methods

is.na() Methods for 'Matrix' Objects

lsparseMatrix-classes

Sparse logical matrices

dgeMatrix-class

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

nsparseMatrix-classes

Sparse logical matrices

number-class

Class "number" of Possibly Complex Numbers

spMatrix

Sparse Matrix Constructor From Triplet

kronecker-methods

Methods for Function 'kronecker()' in Package 'Matrix'

sparseMatrix-class

Virtual Class "sparseMatrix" --- Mother of Sparse Matrices

sparseVector-class

Sparse Vector Classes

Unused-classes

Virtual Classes Not Yet Used

Matrix

Construct a Classed Matrix

dMatrix-class

(Virtual) Class "dMatrix" of "double" Matrices

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

isSymmetric-methods

Methods for Function isSymmetric in Package 'Matrix'

pMatrix-class

Permutation matrices