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Matrix (version 1.5-4)

Sparse and Dense Matrix Classes and Methods

Description

A rich hierarchy of matrix classes, including triangular, symmetric, and diagonal matrices, both dense and sparse and with pattern, logical and numeric entries. Numerous methods for and operations on these matrices, using 'LAPACK' and 'SuiteSparse' libraries.

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Install

install.packages('Matrix')

Monthly Downloads

57,297

Version

1.5-4

License

GPL (>= 2) | file LICENCE

Homepage

https://Matrix.R-forge.R-project.org/

Maintainer

Martin Maechler

Last Published

April 4th, 2023

Functions in Matrix (1.5-4)

BunchKaufman-methods

Bunch-Kaufman Decomposition Methods

Albers' example Matrix with "Difficult" Eigen Factorization

Construct a Diagonal Matrix

CHMfactor-class

CHOLMOD-based Cholesky Factorizations

Construct a Classed Matrix

Koenker-Ng Example Sparse Model Matrix and Response Vector

Cholesky Decomposition of a Sparse Matrix

Cholesky and Bunch-Kaufman Decompositions

Khatri-Rao Matrix Product

The Matrix (Super-) Class of a Class

Generate a Hilbert matrix

CsparseMatrix-class

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

LU (dense) Matrix Decompositions

Class "Schur" of Schur Matrix Factorizations

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

MatrixFactorization-class

Class "MatrixFactorization" of Matrix Factorizations

Defunct Functions in Package Matrix

RsparseMatrix-class

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

Schur Decomposition of a Matrix

Class "abIndex" of Abstract Index Vectors

Matrix-deprecated

Deprecated Functions in Package Matrix

Virtual Class "Matrix" Class of Matrices

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

chol2inv-methods

Inverse from Choleski or QR Decomposition -- Matrix Methods

all.equal-methods

Matrix Package Methods for Function all.equal()

Form Row and Column Sums and Means

SparseM-conversions

Sparse Matrix Coercion from and to those from package SparseM

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

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

USCounties Contiguity Matrix

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

Sequence Generation of "abIndex", Abstract Index Vectors

Extract bands of a matrix

indMatrix-class

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

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

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

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

Virtual Class "index" - Simple Class for Matrix Indices

Construct a Block Diagonal Matrix

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

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

Boolean Arithmetic Matrix Products: %&% and Methods

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

Scale the Rows and Columns of a Matrix

Dulmage-Mendelsohn Permutation / Decomposition

dtCMatrix-class

Triangular, (compressed) sparse column matrices

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

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

Expand a (Matrix) Decomposition into Factors

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

Matrix Exponential

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

dtrMatrix-class

Triangular, dense, numeric matrices

Test whether a Matrix is Triangular or Diagonal

externalFormats

Read and write external matrix formats

The Cholesky Decomposition - 'Matrix' S4 Generic and Methods

dgTMatrix-class

Sparse matrices in triplet form

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

kronecker-methods

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

dgeMatrix-class

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

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

dpoMatrix-class

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

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

matrix-products

Matrix (Cross) Products (of Transpose)

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

ntrMatrix-class

Triangular Dense Logical Matrices

Class "nMatrix" of Non-zero Pattern Matrices

Drop "Explicit Zeroes" from a Sparse Matrix

lsparseMatrix-classes

Sparse logical matrices

Multiplication by Decomposition Factors

Formatting Sparse Numeric Matrices Utilities

Are the Dimnames dn NULL-like ?

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

generalMatrix-class

Class "generalMatrix" of General Matrices

sparseVector-class

Sparse Vector Classes

graph-sparseMatrix

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

dsyMatrix-class

Symmetric Dense (Packed or Unpacked) Numeric Matrices

isSymmetric-methods

Methods for Function 'isSymmetric' in Package 'Matrix'

“Low Level” Coercions and Methods

(Generalized) Triangular Decomposition of a Matrix

Methods for image() in Package 'Matrix'

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

Estimate the Reciprocal Condition Number

Replicate Vectors into 'abIndex' Result

Inverse Permutation Vector

Map Matrix to its Triplet Representation

Sparse Vector Construction from Nonzero Entries

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

nsparseMatrix-classes

Sparse "pattern" Matrices

General Sparse Matrix Construction from Nonzero Entries

lsyMatrix-class

Symmetric Dense Logical Matrices

ltrMatrix-class

Triangular Dense Logical Matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

Sparse QR decomposition of a sparse matrix

Class "number" of Possibly Complex Numbers

Permutation matrices

Nearest Positive Definite Matrix

Random Sparse Matrix

Representation of Packed and Unpacked Dense Matrices

replValue-class

Virtual Class "replValue" - Simple Class for Subassignment Values

unpackedMatrix-class

Virtual Class "unpackedMatrix" of Unpacked Dense Matrices

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

QR Decomposition -- S4 Methods and Generic

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

The Number of Non-Zero Values of a Matrix

Rank of a Matrix

packedMatrix-class

Virtual Class "packedMatrix" of Packed Dense Matrices

Format and Print Sparse Matrices Flexibly

Methods in Package Matrix for Function solve()

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

Symmetric Part and Skew(symmetric) Part of a Matrix

Sparse LU decomposition of a square sparse matrix

Sparse Matrix Constructor From Triplet

sparseMatrix-class

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

sparse.model.matrix

Construct Sparse Design / Model Matrices

World 1-degree grid contiguity matrix

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

Unique (Sorted) TsparseMatrix Representations

Virtual Classes Not Yet Really Implemented and Used

Up- and Down-Dating a Cholesky Decomposition