Learn R Programming

⚠️There's a newer version (1.7-2) of this package.Take me there.

Matrix (version 1.6-4)

Sparse and Dense Matrix Classes and Methods

Description

A rich hierarchy of sparse and dense matrix classes, including general, symmetric, triangular, and diagonal matrices with numeric, logical, or pattern entries. Efficient methods for operating on such matrices, often wrapping the 'BLAS', 'LAPACK', and 'SuiteSparse' libraries.

Copy Link

Version

Install

install.packages('Matrix')

Monthly Downloads

118,373

Version

1.6-4

License

GPL (>= 2) | file LICENCE

Maintainer

Martin Maechler

Last Published

November 30th, 2023

Functions in Matrix (1.6-4)

Dense LU Factorizations

RsparseMatrix-class

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

Matrix-deprecated

Deprecated Functions in Package Matrix

The Matrix (Super-) Class of a Class

Khatri-Rao Matrix Product

MatrixFactorization-class

Virtual Class "MatrixFactorization" of Matrix Factorizations

Virtual Class "Matrix" of Matrices

Contiguity Matrix of U.S. Counties

Construct a Classed Matrix

Methods for Schur Factorization

Subscript-methods

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

Defunct Functions in Package Matrix

Subassign-methods

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

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

Schur Factorizations

all.equal-methods

Matrix Package Methods for Function all.equal()

coerce-methods-SparseM

Sparse Matrix Coercion from and to those from package SparseM

Class "abIndex" of Abstract Index Vectors

Sequence Generation of "abIndex", Abstract Index Vectors

'cbind()' and 'rbind()' recursively built on cbind2/rbind2

Construct Sparse Banded Matrix from (Sup-/Super-) Diagonals

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

Construct a Block Diagonal Matrix

Extract bands of a matrix

Compute the Cholesky Factor of a Matrix

chol2inv-methods

Inverse from Cholesky Factor

boolmatmult-methods

Boolean Arithmetic Matrix Products: %&% and Methods

Compute Approximate CONDition number and 1-Norm of (Large) Matrices

colSums-methods

Form Row and Column Sums and Means

dgTMatrix-class

Sparse matrices in triplet form

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

dgeMatrix-class

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

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

dtCMatrix-class

Triangular, (compressed) sparse column matrices

dpoMatrix-class

Positive Semi-definite Dense (Packed | Non-packed) Numeric Matrices

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

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

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

dsyMatrix-class

Symmetric Dense (Packed or Unpacked) Numeric Matrices

Formatting Sparse Numeric Matrices Utilities

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

Utilities for Permutation Vectors

is.na(), is.finite() Methods for 'Matrix' Objects

Scale the Rows and Columns of a Matrix

Dulmage-Mendelsohn Permutation / Decomposition

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

generalMatrix-class

Class "generalMatrix" of General Matrices

Drop Non-Structural Zeros from a Sparse Matrix

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

externalFormats

Read and write external matrix formats

Multiplication by Factors from Matrix Factorizations

Are the Dimnames dn NULL-like ?

Map Matrix to its Triplet Representation

Methods for LU Factorization

indMatrix-class

dtrMatrix-class

Triangular, dense, numeric matrices

isTriangular-methods

Test whether a Matrix is Triangular or Diagonal

Virtual Class "index" - Simple Class for Matrix Indices

Expand Matrix Factorizations

Matrix Exponential

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

coerce-methods-graph

Conversions "graph" <--> (sparse) Matrix

isSymmetric-methods

Methods for Function 'isSymmetric' in Package 'Matrix'

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

nsparseMatrix-classes

Sparse "pattern" Matrices

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

“Low Level” Coercions and Methods

Estimate the Reciprocal Condition Number

kronecker-methods

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

Methods for image() in Package 'Matrix'

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

packedMatrix-class

Virtual Class "packedMatrix" of Packed Dense Matrices

Replicate Vectors into 'abIndex' Result

Format and Print Sparse Matrices Flexibly

matmult-methods

Matrix (Cross) Products (of Transpose)

Class "nMatrix" of Non-zero Pattern Matrices

ntrMatrix-class

Triangular Dense Logical Matrices

Methods for QR Factorization

Rank of a Matrix

Sparse LU Factorizations

lsparseMatrix-classes

Sparse logical matrices

forceSymmetric-methods

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

lsyMatrix-class

Symmetric Dense Logical Matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

Nearest Positive Definite Matrix

sparseMatrix-class

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

Random Sparse Matrix

Class "number" of Possibly Complex Numbers

ltrMatrix-class

Triangular Dense Logical Matrices

Permutation matrices

Methods in Package Matrix for Function solve

General Sparse Matrix Construction from Nonzero Entries

Sparse Matrix Constructor From Triplet

sparse.model.matrix

Construct Sparse Design / Model Matrices

Contiguity Matrix of World One-Degree Grid Cells

Sparse QR Factorizations

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

sparseVector-class

Sparse Vector Classes

Sparse Vector Construction from Nonzero Entries

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

The Number of Non-Zero Values of a Matrix

Virtual Classes Not Yet Really Implemented and Used

Standardize a Sparse Matrix in Triplet Format

Updating and Downdating Sparse Cholesky Factorizations

replValue-class

Virtual Class "replValue" - Simple Class for Subassignment Values

Class "rleDiff" of rle(diff(.)) Stored Vectors

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

symmpart-methods

Symmetric Part and Skew(symmetric) Part of a Matrix

Representation of Packed and Unpacked Dense Matrices

unpackedMatrix-class

Virtual Class "unpackedMatrix" of Unpacked Dense Matrices

Albers' example Matrix with "Difficult" Eigen Factorization

Koenker-Ng Example Sparse Model Matrix and Response Vector

Generate a Hilbert matrix

Dense Cholesky Factorizations

BunchKaufman-methods

Methods for Bunch-Kaufman Factorization

CHMfactor-class

Sparse Cholesky Factorizations

Cholesky-methods

Methods for Cholesky Factorization

Construct a Diagonal Matrix

BunchKaufman-class

Dense Bunch-Kaufman Factorizations

CsparseMatrix-class

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