Learn R Programming

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

Matrix (version 1.6-5)

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

1.6-5

License

GPL (>= 2) | file LICENCE

Maintainer

Martin Maechler

Last Published

January 11th, 2024

Functions in Matrix (1.6-5)

The Matrix (Super-) Class of a Class

Matrix-deprecated

Deprecated Functions in Package Matrix

Virtual Class "Matrix" of Matrices

Defunct Functions in Package Matrix

RsparseMatrix-class

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

Schur Factorizations

MatrixFactorization-class

Virtual Class "MatrixFactorization" of Matrix Factorizations

Class "abIndex" of Abstract Index Vectors

Sequence Generation of "abIndex", Abstract Index Vectors

Contiguity Matrix of U.S. Counties

Subscript-methods

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

Khatri-Rao Matrix Product

Dense LU Factorizations

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

coerce-methods-SparseM

Sparse Matrix Coercion from and to those from package SparseM

Methods for Schur Factorization

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

chol2inv-methods

Inverse from Cholesky Factor

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

colSums-methods

Form Row and Column Sums and Means

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

dgeMatrix-class

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

dgTMatrix-class

Sparse matrices in triplet form

Subassign-methods

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

Construct a Classed Matrix

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

Extract bands of a matrix

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

all.equal-methods

Matrix Package Methods for Function all.equal()

Scale the Rows and Columns of a Matrix

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

dtCMatrix-class

Triangular, (compressed) sparse column matrices

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

externalFormats

Read and write external matrix formats

Multiplication by Factors from Matrix Factorizations

coerce-methods-graph

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

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

Methods for image() in Package 'Matrix'

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

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

Compute the Cholesky Factor of a Matrix

Construct a Block Diagonal Matrix

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

dpoMatrix-class

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

boolmatmult-methods

Boolean Arithmetic Matrix Products: %&% and Methods

Expand Matrix Factorizations

Dulmage-Mendelsohn Permutation / Decomposition

Matrix Exponential

kronecker-methods

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

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

matmult-methods

Matrix (Cross) Products (of Transpose)

“Low Level” Coercions and Methods

Drop Non-Structural Zeros from a Sparse Matrix

dsyMatrix-class

Symmetric Dense (Packed or Unpacked) Numeric Matrices

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

Formatting Sparse Numeric Matrices Utilities

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

Class "nMatrix" of Non-zero Pattern Matrices

forceSymmetric-methods

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

The Number of Non-Zero Values of a Matrix

generalMatrix-class

Class "generalMatrix" of General Matrices

Utilities for Permutation Vectors

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

dtrMatrix-class

Triangular, dense, numeric matrices

Are the Dimnames dn NULL-like ?

indMatrix-class

isTriangular-methods

Test whether a Matrix is Triangular or Diagonal

isSymmetric-methods

Methods for Function 'isSymmetric' in Package 'Matrix'

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

Replicate Vectors into 'abIndex' Result

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

Virtual Class "index" - Simple Class for Matrix Indices

Representation of Packed and Unpacked Dense Matrices

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

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

replValue-class

Virtual Class "replValue" - Simple Class for Subassignment Values

lsyMatrix-class

Symmetric Dense Logical Matrices

packedMatrix-class

Virtual Class "packedMatrix" of Packed Dense Matrices

unpackedMatrix-class

Virtual Class "unpackedMatrix" of Unpacked Dense Matrices

Methods for LU Factorization

lsparseMatrix-classes

Sparse logical matrices

ltrMatrix-class

Triangular Dense Logical Matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

Class "number" of Possibly Complex Numbers

Format and Print Sparse Matrices Flexibly

Permutation matrices

Estimate the Reciprocal Condition Number

sparseVector-class

Sparse Vector Classes

Nearest Positive Definite Matrix

Methods for QR Factorization

Sparse Vector Construction from Nonzero Entries

Rank of a Matrix

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

Sparse LU Factorizations

Map Matrix to its Triplet Representation

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

Standardize a Sparse Matrix in Triplet Format

nsparseMatrix-classes

Sparse "pattern" Matrices

symmpart-methods

Symmetric Part and Skew(symmetric) Part of a Matrix

ntrMatrix-class

Triangular Dense Logical Matrices

sparseMatrix-class

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

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

Sparse Matrix Constructor From Triplet

sparse.model.matrix

Construct Sparse Design / Model Matrices

Virtual Classes Not Yet Really Implemented and Used

Random Sparse Matrix

Methods in Package Matrix for Function solve

General Sparse Matrix Construction from Nonzero Entries

Updating and Downdating Sparse Cholesky Factorizations

Sparse QR Factorizations

Contiguity Matrix of World One-Degree Grid Cells

Albers' example Matrix with "Difficult" Eigen Factorization

BunchKaufman-methods

Methods for Bunch-Kaufman Factorization

Dense Cholesky Factorizations

Construct a Diagonal Matrix

Koenker-Ng Example Sparse Model Matrix and Response Vector

Generate a Hilbert matrix

CHMfactor-class

Sparse Cholesky Factorizations

CsparseMatrix-class

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

BunchKaufman-class

Dense Bunch-Kaufman Factorizations

Cholesky-methods

Methods for Cholesky Factorization