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Matrix (version 1.5-1)

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

1.5-1

License

GPL (>= 2) | file LICENCE

Homepage

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

Maintainer

Martin Maechler

Last Published

September 13th, 2022

Functions in Matrix (1.5-1)

CHMfactor-class

CHOLMOD-based Cholesky Factorizations

BunchKaufman-methods

Bunch-Kaufman Decomposition Methods

Koenker-Ng Example Sparse Model Matrix and Response Vector

Cholesky and Bunch-Kaufman Decompositions

Albers' example Matrix with "Difficult" Eigen Factorization

Class "Schur" of Schur Matrix Factorizations

Create Diagonal Matrix Object

Construct a Classed Matrix

SparseM-conversions

Sparse Matrix Coercion from and to those from package SparseM

Khatri-Rao Matrix Product

Cholesky Decomposition of a Sparse Matrix

The Matrix (Super-) Class of a Class

Sequence Generation of "abIndex", Abstract Index Vectors

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

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

Generate a Hilbert matrix

CsparseMatrix-class

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

Schur Decomposition of a Matrix

MatrixFactorization-class

Class "MatrixFactorization" of Matrix Factorizations

Extract bands of a matrix

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

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

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

USCounties Contiguity Matrix

RsparseMatrix-class

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

LU (dense) Matrix Decompositions

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

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

Class "abIndex" of Abstract Index Vectors

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

The Cholesky Decomposition - 'Matrix' S4 Generic and Methods

indMatrix-class

Virtual Class "index" - Simple Class for Matrix Indices

Virtual Class "Matrix" Class of Matrices

Are the Dimnames dn NULL-like ?

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

all.equal-methods

Matrix Package Methods for Function all.equal()

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

chol2inv-methods

Inverse from Choleski or QR Decomposition -- Matrix Methods

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

Form Row and Column Sums and Means

Dulmage-Mendelsohn Permutation / Decomposition

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

Construct a Block Diagonal Matrix

Boolean Arithmetic Matrix Products: %&% and Methods

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

isSymmetric-methods

Methods for Function 'isSymmetric' in Package 'Matrix'

dsyMatrix-class

Symmetric Dense (Packed or Unpacked) Numeric Matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

Nearest Positive Definite Matrix

dtCMatrix-class

Triangular, (compressed) sparse column matrices

dgTMatrix-class

Sparse matrices in triplet form

QR Decomposition -- S4 Methods and Generic

dpoMatrix-class

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

Rank of a Matrix

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

dtrMatrix-class

Triangular, dense, numeric matrices

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

Formatting Sparse Numeric Matrices Utilities

dgeMatrix-class

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

Drop "Explicit Zeroes" from a Sparse Matrix

generalMatrix-class

Class "generalMatrix" of General Matrices

Expand a (Matrix) Decomposition into Factors

Matrix Exponential

Multiplication by Decomposition Factors

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

graph-sparseMatrix

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

Test whether a Matrix is Triangular or Diagonal

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

externalFormats

Read and write external matrix formats

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

Sparse LU decomposition of a square sparse matrix

(Generalized) Triangular Decomposition of a Matrix

kronecker-methods

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

lsyMatrix-class

Symmetric Dense Logical Matrices

Inverse Permutation Vector

Map Matrix to its Triplet Representation

lsparseMatrix-classes

Sparse logical matrices

Class "number" of Possibly Complex Numbers

sparseMatrix-class

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

sparseVector-class

Sparse Vector Classes

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

matrix-products

Matrix (Cross) Products (of Transpose)

Class "nMatrix" of Non-zero Pattern Matrices

ltrMatrix-class

Triangular Dense Logical Matrices

Sparse Matrix Constructor From Triplet

Methods for image() in Package 'Matrix'

sparse.model.matrix

Construct Sparse Design / Model Matrices

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

Sparse Vector Construction from Nonzero Entries

Unique (Sorted) TsparseMatrix Representations

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

World 1-degree grid contiguity matrix

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

ntrMatrix-class

Triangular Dense Logical Matrices

Permutation matrices

General Sparse Matrix Construction from Nonzero Entries

Estimate the Reciprocal Condition Number

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

Replicate Vectors into 'abIndex' Result

Sparse QR decomposition of a sparse matrix

Representation of Packed and Unpacked Dense Matrices

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

unpackedMatrix-class

Virtual Class "unpackedMatrix" of Unpacked Dense Matrices

nsparseMatrix-classes

Sparse "pattern" Matrices

replValue-class

Virtual Class "replValue" - Simple Class for Subassignment Values

The Number of Non-Zero Values of a Matrix

packedMatrix-class

Virtual Class "packedMatrix" of Packed Dense Matrices

Format and Print Sparse Matrices Flexibly

Random Sparse Matrix

Methods in Package Matrix for Function solve()

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

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

Symmetric Part and Skew(symmetric) Part of a Matrix

Virtual Classes Not Yet Really Implemented and Used

Up- and Down-Dating a Cholesky Decomposition