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Matrix (version 0.99875-2)

A Matrix package for R

Description

Classes and methods for dense and sparse matrices and operations on them using Lapack, CSparse and CHOLMOD

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Version

Install

install.packages('Matrix')

Monthly Downloads

91,970

Version

0.99875-2

License

GPL version 2 or later. This R package includes libraries CHOLMOD, AMD, COLAMD and CSparse from the University of Florida sparse matrix library maintained by Tim Davis. All sections of that code are covered by the GPL or LGPL licenses. See the directory doc/UFsparse for details.

Maintainer

Doug

Last Published

August 28th, 2025

Functions in Matrix (0.99875-2)

Construct a Classed Matrix

Generate a Hilbert matrix

dtCMatrix-class

Triangular, (compressed) sparse column matrices

Matrix exponential

Cholesky Decomposition of a Sparse Matrix

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

generalMatrix-class

Class "generalMatrix" of General Matrices

Cross-product of transpose

Virtual Class "Matrix" Class of Matrices

Estimate the Reciprocal Condition Number

CsparseMatrix-class

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

Koenker-Ng Example Sparse Model Matrix and Response Vector

ntrMatrix-class

Triangular Dense Logical Matrices

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

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

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

lsyMatrix-class

Symmetric Dense Logical Matrices

dpoMatrix-class

Positive Semi-definite Dense Numeric Matrices

dgRMatrix-class

Compressed, sparse, row-oriented numeric matrices

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

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

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

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

sparseMatrix-class

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

Multiplication by Decomposition Factors

triangularMatrix-class

Virtual Class of Triangular Matrices in package:Matrix

dCholCMatrix-class

Cholesky Decompositions of dsCMatrix Objects

dgTMatrix-class

Sparse matrices in triplet form

dtpMatrix-class

Packed triangular dense matrices

Form Row and Column Sums and Means

Expand a Decomposition into Factors

Create Diagonal Matrix Object

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

Albers' example Matrix with "Difficult" Eigen Factorization

Methods for the qr generic

kronecker-methods

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

Construct a Block Diagonal Matrix

dgeMatrix-class

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

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

RsparseMatrix-class

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

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

Versions of 'cbind' and 'rbind' recursively built on cbind2/rbind2

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

Extract bands of a matrix

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

Triangular Decomposition of a Square Matrix

Schur Decomposition of a Matrix

ltrMatrix-class

Triangular Dense Logical Matrices

dsyMatrix-class

Symmetric Dense Numeric Matrices

Permutation matrices

Sparse LU decomposition of a square sparse matrix

SparseM-conversions

Sparse Matrix Coercion from and to those from package "SparseM"

Norm of a Matrix

Class "nMatrix" of Non-zero Pattern Matrices

externalFormats

Read and write external matrix formats

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

Full Storage Representation of Packed Matrices

The Number of Non-Zero Values of a Matrix

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

Drop "Explicit Zeroes" from a Sparse Matrix

replValue-class

Virtual Class "replValue" - Simple Class for subassignment Values

Sparse Matrix Constructor From Triplet

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

isSymmetric-methods

Methods for Function isSymmetric in Package 'Matrix'

nsparseMatrix-classes

Sparse logical matrices

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

sparseVector-class

Sparse Vector Classes

Sparse QR decomposition of a sparse matrix

Virtual Classes Not Yet Used

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

CHMfactor-class

CHOLMOD-based Cholesky Factorizations

Cholesky and Bunch-Kaufman Decompositions

MatrixFactorization-class

Class "MatrixFactorization" of Matrix Factorizations

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

Virtual Class "index" - Simple Class for Matrix Indices

lsparseMatrix-classes

Sparse logical matrices

symmetricMatrix-class

Virtual Class of Symmetric Matrices in package:Matrix

LU (dense) Matrix Decompositions