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Matrix (version 1.6-3)

Sparse and Dense Matrix Classes and Methods

Description

A rich hierarchy of sparse and dense matrix classes, including general, symmetric, triangular, and diagonal matrices with numeric, logical, or pattern entries. Efficient methods for operating on such matrices, often wrapping the 'BLAS', 'LAPACK', and 'SuiteSparse' libraries.

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Install

install.packages('Matrix')

Monthly Downloads

108,657

Version

1.6-3

License

GPL (>= 2) | file LICENCE

Maintainer

Martin Maechler

Last Published

November 14th, 2023

Functions in Matrix (1.6-3)

Albers' example Matrix with "Difficult" Eigen Factorization

CHMfactor-class

Sparse Cholesky Factorizations

CsparseMatrix-class

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

BunchKaufman-class

Dense Bunch-Kaufman Factorizations

RsparseMatrix-class

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

Generate a Hilbert matrix

BunchKaufman-methods

Methods for Bunch-Kaufman Factorization

Koenker-Ng Example Sparse Model Matrix and Response Vector

Contiguity Matrix of U.S. Counties

Construct a Diagonal Matrix

Schur Factorizations

Subassign-methods

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

Subscript-methods

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

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

Khatri-Rao Matrix Product

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

Dense LU Factorizations

Compute the Cholesky Factor of a Matrix

Matrix-deprecated

Deprecated Functions in Package Matrix

Construct a Classed Matrix

Virtual Class "Matrix" of Matrices

Defunct Functions in Package Matrix

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

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

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

all.equal-methods

Matrix Package Methods for Function all.equal()

Construct a Block Diagonal Matrix

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

dpoMatrix-class

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

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

boolmatmult-methods

Boolean Arithmetic Matrix Products: %&% and Methods

Methods for Schur Factorization

dgTMatrix-class

Sparse matrices in triplet form

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

coerce-methods-SparseM

Sparse Matrix Coercion from and to those from package SparseM

Extract bands of a matrix

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

Drop Non-Structural Zeros from a Sparse Matrix

Expand Matrix Factorizations

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

Matrix Exponential

dgeMatrix-class

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

Scale the Rows and Columns of a Matrix

Dense Cholesky Factorizations

Dulmage-Mendelsohn Permutation / Decomposition

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

indMatrix-class

Virtual Class "index" - Simple Class for Matrix Indices

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

Cholesky-methods

Methods for Cholesky Factorization

The Matrix (Super-) Class of a Class

coerce-methods-graph

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

Methods for image() in Package 'Matrix'

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

MatrixFactorization-class

Virtual Class "MatrixFactorization" of Matrix Factorizations

lsparseMatrix-classes

Sparse logical matrices

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

Class "abIndex" of Abstract Index Vectors

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

The Number of Non-Zero Values of a Matrix

Sequence Generation of "abIndex", Abstract Index Vectors

dtrMatrix-class

Triangular, dense, numeric matrices

Utilities for Permutation Vectors

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

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

Estimate the Reciprocal Condition Number

Methods for LU Factorization

Map Matrix to its Triplet Representation

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

chol2inv-methods

Inverse from Cholesky Factor

Replicate Vectors into 'abIndex' Result

Sparse Matrix Constructor From Triplet

colSums-methods

Form Row and Column Sums and Means

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

sparse.model.matrix

Construct Sparse Design / Model Matrices

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

dsyMatrix-class

Symmetric Dense (Packed or Unpacked) Numeric Matrices

externalFormats

Read and write external matrix formats

“Low Level” Coercions and Methods

Nearest Positive Definite Matrix

forceSymmetric-methods

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

Random Sparse Matrix

Methods in Package Matrix for Function solve

packedMatrix-class

Virtual Class "packedMatrix" of Packed Dense Matrices

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

Format and Print Sparse Matrices Flexibly

dtCMatrix-class

Triangular, (compressed) sparse column matrices

Multiplication by Factors from Matrix Factorizations

General Sparse Matrix Construction from Nonzero Entries

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

Formatting Sparse Numeric Matrices Utilities

isTriangular-methods

Test whether a Matrix is Triangular or Diagonal

Contiguity Matrix of World One-Degree Grid Cells

Sparse QR Factorizations

generalMatrix-class

Class "generalMatrix" of General Matrices

kronecker-methods

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

matmult-methods

Matrix (Cross) Products (of Transpose)

Representation of Packed and Unpacked Dense Matrices

Class "nMatrix" of Non-zero Pattern Matrices

unpackedMatrix-class

Virtual Class "unpackedMatrix" of Unpacked Dense Matrices

Are the Dimnames dn NULL-like ?

ntrMatrix-class

Triangular Dense Logical Matrices

sparseVector-class

Sparse Vector Classes

Sparse Vector Construction from Nonzero Entries

nsparseMatrix-classes

Sparse "pattern" Matrices

replValue-class

Virtual Class "replValue" - Simple Class for Subassignment Values

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

isSymmetric-methods

Methods for Function 'isSymmetric' in Package 'Matrix'

lsyMatrix-class

Symmetric Dense Logical Matrices

Sparse LU Factorizations

ltrMatrix-class

Triangular Dense Logical Matrices

sparseMatrix-class

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

Class "number" of Possibly Complex Numbers

Virtual Classes Not Yet Really Implemented and Used

Updating and Downdating Sparse Cholesky Factorizations

Permutation matrices

Methods for QR Factorization

Rank of a Matrix

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

symmpart-methods

Symmetric Part and Skew(symmetric) Part of a Matrix

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

Standardize a Sparse Matrix in Triplet Format