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Matrix (version 1.5-4.1)

Sparse and Dense Matrix Classes and Methods

Description

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

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Install

install.packages('Matrix')

Monthly Downloads

155,110

Version

1.5-4.1

License

GPL (>= 2) | file LICENCE

Maintainer

Martin Maechler

Last Published

May 18th, 2023

Functions in Matrix (1.5-4.1)

CsparseMatrix-class

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

CHMfactor-class

CHOLMOD-based Cholesky Factorizations

Construct a Diagonal Matrix

Cholesky Decomposition of a Sparse Matrix

Cholesky and Bunch-Kaufman Decompositions

LU (dense) Matrix Decompositions

Class "Schur" of Schur Matrix Factorizations

Schur Decomposition of a Matrix

Defunct Functions in Package Matrix

Construct a Classed Matrix

Matrix-deprecated

Deprecated Functions in Package Matrix

Virtual Class "Matrix" Class of Matrices

The Matrix (Super-) Class of a Class

SparseM-conversions

Sparse Matrix Coercion from and to those from package SparseM

MatrixFactorization-class

Class "MatrixFactorization" of Matrix Factorizations

RsparseMatrix-class

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

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

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

Sequence Generation of "abIndex", Abstract Index Vectors

USCounties Contiguity Matrix

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

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

chol2inv-methods

Inverse from Choleski or QR Decomposition -- Matrix Methods

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

Class "abIndex" of Abstract Index Vectors

Extract bands of a matrix

Form Row and Column Sums and Means

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

all.equal-methods

Matrix Package Methods for Function all.equal()

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

dgeMatrix-class

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

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

The Cholesky Decomposition - 'Matrix' S4 Generic and Methods

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

Construct a Block Diagonal Matrix

dgTMatrix-class

Sparse matrices in triplet form

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

Boolean Arithmetic Matrix Products: %&% and Methods

dtCMatrix-class

Triangular, (compressed) sparse column matrices

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

dsyMatrix-class

Symmetric Dense (Packed or Unpacked) Numeric Matrices

“Low Level” Coercions and Methods

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

dpoMatrix-class

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

Formatting Sparse Numeric Matrices Utilities

generalMatrix-class

Class "generalMatrix" of General Matrices

Drop "Explicit Zeroes" from a Sparse Matrix

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

Inverse Permutation Vector

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

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

dtrMatrix-class

Triangular, dense, numeric matrices

Scale the Rows and Columns of a Matrix

(Generalized) Triangular Decomposition of a Matrix

Expand a (Matrix) Decomposition into Factors

Test whether a Matrix is Triangular or Diagonal

Dulmage-Mendelsohn Permutation / Decomposition

graph-sparseMatrix

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

Matrix Exponential

kronecker-methods

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

externalFormats

Read and write external matrix formats

indMatrix-class

Methods for image() in Package 'Matrix'

Map Matrix to its Triplet Representation

Class "number" of Possibly Complex Numbers

nsparseMatrix-classes

Sparse "pattern" Matrices

Virtual Class "index" - Simple Class for Matrix Indices

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

Multiplication by Decomposition Factors

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

Are the Dimnames dn NULL-like ?

isSymmetric-methods

Methods for Function 'isSymmetric' in Package 'Matrix'

matrix-products

Matrix (Cross) Products (of Transpose)

lsyMatrix-class

Symmetric Dense Logical Matrices

Permutation matrices

Class "nMatrix" of Non-zero Pattern Matrices

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

ltrMatrix-class

Triangular Dense Logical Matrices

replValue-class

Virtual Class "replValue" - Simple Class for Subassignment Values

lsparseMatrix-classes

Sparse logical matrices

Replicate Vectors into 'abIndex' Result

Estimate the Reciprocal Condition Number

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

Sparse Matrix Constructor From Triplet

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

sparse.model.matrix

Construct Sparse Design / Model Matrices

Symmetric Part and Skew(symmetric) Part of a Matrix

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

The Number of Non-Zero Values of a Matrix

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

World 1-degree grid contiguity matrix

QR Decomposition -- S4 Methods and Generic

Rank of a Matrix

Nearest Positive Definite Matrix

Representation of Packed and Unpacked Dense Matrices

Random Sparse Matrix

ntrMatrix-class

Triangular Dense Logical Matrices

General Sparse Matrix Construction from Nonzero Entries

unpackedMatrix-class

Virtual Class "unpackedMatrix" of Unpacked Dense Matrices

Sparse QR decomposition of a sparse matrix

Methods in Package Matrix for Function solve()

sparseMatrix-class

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

Sparse LU decomposition of a square sparse matrix

Virtual Classes Not Yet Really Implemented and Used

packedMatrix-class

Virtual Class "packedMatrix" of Packed Dense Matrices

Up- and Down-Dating a Cholesky Decomposition

Format and Print Sparse Matrices Flexibly

sparseVector-class

Sparse Vector Classes

Sparse Vector Construction from Nonzero Entries

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

Unique (Sorted) TsparseMatrix Representations

Koenker-Ng Example Sparse Model Matrix and Response Vector

Khatri-Rao Matrix Product

Generate a Hilbert matrix

BunchKaufman-methods

Bunch-Kaufman Decomposition Methods

Albers' example Matrix with "Difficult" Eigen Factorization