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Matrix (version 1.4-0)

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

1.4-0

License

GPL (>= 2) | file LICENCE

Homepage

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

Maintainer

Martin Maechler

Last Published

December 8th, 2021

Functions in Matrix (1.4-0)

Generate a Hilbert matrix

Khatri-Rao Matrix Product

Cholesky and Bunch-Kaufman Decompositions

Cholesky Decomposition of a Sparse Matrix

CHMfactor-class

CHOLMOD-based Cholesky Factorizations

Albers' example Matrix with "Difficult" Eigen Factorization

Koenker-Ng Example Sparse Model Matrix and Response Vector

CsparseMatrix-class

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

BunchKaufman-methods

Bunch-Kaufman Decomposition Methods

Create Diagonal Matrix Object

SparseM-conversions

Sparse Matrix Coercion from and to those from package SparseM

LU (dense) Matrix Decompositions

Virtual Class "Matrix" Class of Matrices

Class "Schur" of Schur Matrix Factorizations

Schur Decomposition of a Matrix

RsparseMatrix-class

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

MatrixFactorization-class

Class "MatrixFactorization" of Matrix Factorizations

Construct a Classed Matrix

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

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

The Matrix (Super-) Class of a Class

Sequence Generation of "abIndex", Abstract Index Vectors

all.equal-methods

Matrix Package Methods for Function all.equal()

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

Class "abIndex" of Abstract Index Vectors

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

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

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

Extract bands of a matrix

USCounties Contiguity Matrix

Form Row and Column Sums and Means

chol2inv-methods

Inverse from Choleski or QR Decomposition -- Matrix Methods

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

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

Choleski Decomposition - 'Matrix' S4 Generic and Methods

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

Construct a Block Diagonal Matrix

Boolean Arithmetic Matrix Products: %&% and Methods

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

dgTMatrix-class

Sparse matrices in triplet form

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

dgeMatrix-class

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

dpoMatrix-class

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

Drop "Explicit Zeroes" from a Sparse Matrix

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

dsyMatrix-class

Symmetric Dense (Packed | Non-packed) Numeric Matrices

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

dtrMatrix-class

Triangular, dense, numeric matrices

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

Matrix Exponential

Expand a (Matrix) Decomposition into Factors

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

Formatting Sparse Numeric Matrices Utilities

graph-sparseMatrix

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

generalMatrix-class

Class "generalMatrix" of General Matrices

Virtual Class "index" - Simple Class for Matrix Indices

Inverse Permutation Vector

indMatrix-class

Methods for image() in Package 'Matrix'

dtCMatrix-class

Triangular, (compressed) sparse column matrices

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

Multiplication by Decomposition Factors

externalFormats

Read and write external matrix formats

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

kronecker-methods

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

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

lsyMatrix-class

Symmetric Dense Logical Matrices

lsparseMatrix-classes

Sparse logical matrices

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

isSymmetric-methods

Methods for Function isSymmetric in Package 'Matrix'

Are the Dimnames dn NULL-like ?

The Number of Non-Zero Values of a Matrix

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

ltrMatrix-class

Triangular Dense Logical Matrices

Nearest Positive Definite Matrix

(Generalized) Triangular Decomposition of a Matrix

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

Class "nMatrix" of Non-zero Pattern Matrices

Map Matrix to its Triplet Representation

matrix-products

Matrix (Cross) Products (of Transpose)

QR Decomposition -- S4 Methods and Generic

Permutation matrices

ntrMatrix-class

Triangular Dense Logical Matrices

nsparseMatrix-classes

Sparse "pattern" Matrices

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

Class "number" of Possibly Complex Numbers

Replicate Vectors into 'abIndex' Result

Estimate the Reciprocal Condition Number

Format and Print Sparse Matrices Flexibly

Rank of a Matrix

Sparse QR decomposition of a sparse matrix

Sparse Matrix Constructor From Triplet

sparseMatrix-class

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

Sparse LU decomposition of a square sparse matrix

sparse.model.matrix

Construct Sparse Design / Model Matrices

Random Sparse Matrix

General Sparse Matrix Construction from Nonzero Entries

Methods in Package Matrix for Function solve()

replValue-class

Virtual Class "replValue" - Simple Class for subassignment Values

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

sparseVector-class

Sparse Vector Classes

Sparse Vector Construction from Nonzero Entries

World 1-degree grid contiguity matrix

Up- and Down-Dating a Cholesky Decomposition

Representation of Packed and Unpacked (Dense) Matrices

Virtual Classes Not Yet Really Implemented and Used

Symmetric Part and Skew(symmetric) Part of a Matrix

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

Unique (Sorted) TsparseMatrix Representations