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Matrix (version 1.4-1)

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

107,780

Version

1.4-1

License

GPL (>= 2) | file LICENCE

Homepage

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

Maintainer

Martin Maechler

Last Published

March 23rd, 2022

Functions in Matrix (1.4-1)

Construct a Classed Matrix

Class "Schur" of Schur Matrix Factorizations

Schur Decomposition of a Matrix

CsparseMatrix-class

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

SparseM-conversions

Sparse Matrix Coercion from and to those from package SparseM

The Matrix (Super-) Class of a Class

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

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

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

Virtual Class "Matrix" Class of Matrices

LU (dense) Matrix Decompositions

Sequence Generation of "abIndex", Abstract Index Vectors

USCounties Contiguity Matrix

MatrixFactorization-class

Class "MatrixFactorization" of Matrix Factorizations

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

Extract bands of a matrix

all.equal-methods

Matrix Package Methods for Function all.equal()

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

Class "abIndex" of Abstract Index Vectors

Form Row and Column Sums and Means

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

chol2inv-methods

Inverse from Choleski or QR Decomposition -- Matrix Methods

Choleski Decomposition - 'Matrix' S4 Generic and Methods

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

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

Dulmage-Mendelsohn Permutation / Decomposition

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

dpoMatrix-class

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

RsparseMatrix-class

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

Construct a Block Diagonal Matrix

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

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

dgTMatrix-class

Sparse matrices in triplet form

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

Boolean Arithmetic Matrix Products: %&% and Methods

dtrMatrix-class

Triangular, dense, numeric matrices

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

Matrix Exponential

Expand a (Matrix) Decomposition into Factors

Multiplication by Decomposition Factors

dgeMatrix-class

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

externalFormats

Read and write external matrix formats

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

dsyMatrix-class

Symmetric Dense (Packed | Non-packed) Numeric Matrices

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

dtCMatrix-class

Triangular, (compressed) sparse column matrices

graph-sparseMatrix

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

Drop "Explicit Zeroes" from a Sparse Matrix

indMatrix-class

Methods for image() in Package 'Matrix'

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

generalMatrix-class

Class "generalMatrix" of General Matrices

Formatting Sparse Numeric Matrices Utilities

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

matrix-products

Matrix (Cross) Products (of Transpose)

Inverse Permutation Vector

Class "nMatrix" of Non-zero Pattern Matrices

isTriangular() and isDiagonal() Checking if Matrix is Triangular or Diagonal

packedMatrix-class

Class "packedMatrix" of packed dense symmetric/triangular Matrices

Are the Dimnames dn NULL-like ?

kronecker-methods

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

Sparse LU decomposition of a square sparse matrix

Virtual Class "index" - Simple Class for Matrix Indices

nsparseMatrix-classes

Sparse "pattern" Matrices

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

sparseMatrix-class

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

Format and Print Sparse Matrices Flexibly

Symmetric Part and Skew(symmetric) Part of a Matrix

The Number of Non-Zero Values of a Matrix

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

Replicate Vectors into 'abIndex' Result

Estimate the Reciprocal Condition Number

General Sparse Matrix Construction from Nonzero Entries

Sparse QR decomposition of a sparse matrix

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

Sparse Matrix Constructor From Triplet

isSymmetric-methods

Methods for Function isSymmetric in Package 'Matrix'

(Generalized) Triangular Decomposition of a Matrix

sparse.model.matrix

Construct Sparse Design / Model Matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

Nearest Positive Definite Matrix

ntrMatrix-class

Triangular Dense Logical Matrices

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

Map Matrix to its Triplet Representation

lsparseMatrix-classes

Sparse logical matrices

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

replValue-class

Virtual Class "replValue" - Simple Class for subassignment Values

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

Permutation matrices

Class "number" of Possibly Complex Numbers

sparseVector-class

Sparse Vector Classes

Up- and Down-Dating a Cholesky Decomposition

Unique (Sorted) TsparseMatrix Representations

Sparse Vector Construction from Nonzero Entries

World 1-degree grid contiguity matrix

lsyMatrix-class

Symmetric Dense Logical Matrices

ltrMatrix-class

Triangular Dense Logical Matrices

Rank of a Matrix

Random Sparse Matrix

QR Decomposition -- S4 Methods and Generic

Methods in Package Matrix for Function solve()

Representation of Packed and Unpacked (Dense) Matrices

Virtual Classes Not Yet Really Implemented and Used

Generate a Hilbert matrix

Albers' example Matrix with "Difficult" Eigen Factorization

BunchKaufman-methods

Bunch-Kaufman Decomposition Methods

Cholesky Decomposition of a Sparse Matrix

Cholesky and Bunch-Kaufman Decompositions

Create Diagonal Matrix Object

CHMfactor-class

CHOLMOD-based Cholesky Factorizations

Koenker-Ng Example Sparse Model Matrix and Response Vector

Khatri-Rao Matrix Product