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Matrix (version 1.6-0)

Sparse and Dense Matrix Classes and Methods

Description

A rich hierarchy of sparse and dense matrix classes, including general, triangular, symmetric, 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

74,588

Version

1.6-0

License

GPL (>= 2) | file LICENCE

Maintainer

Martin Maechler

Last Published

July 8th, 2023

Functions in Matrix (1.6-0)

Generate a Hilbert matrix

Cholesky-methods

Methods for Cholesky Factorization

CsparseMatrix-class

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

BunchKaufman-class

Dense Bunch-Kaufman Factorizations

BunchKaufman-methods

Methods for Bunch-Kaufman Factorization

Construct a Diagonal Matrix

Albers' example Matrix with "Difficult" Eigen Factorization

Koenker-Ng Example Sparse Model Matrix and Response Vector

CHMfactor-class

Sparse Cholesky Factorizations

Dense Cholesky Factorizations

The Matrix (Super-) Class of a Class

Khatri-Rao Matrix Product

Dense LU Factorizations

MatrixFactorization-class

Virtual Class "MatrixFactorization" of Matrix Factorizations

Schur Factorizations

RsparseMatrix-class

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

Matrix-deprecated

Deprecated Functions in Package Matrix

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

all.equal-methods

Matrix Package Methods for Function all.equal()

Virtual Class "Matrix" of Matrices

Defunct Functions in Package Matrix

coerce-methods-SparseM

Sparse Matrix Coercion from and to those from package SparseM

Contiguity Matrix of U.S. Counties

Methods for Schur Factorization

Construct a Classed Matrix

Subscript-methods

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

boolmatmult-methods

Boolean Arithmetic Matrix Products: %&% and Methods

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

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

dgTMatrix-class

Sparse matrices in triplet form

Sequence Generation of "abIndex", Abstract Index Vectors

Class "abIndex" of Abstract Index Vectors

Subassign-methods

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

Compute the Cholesky Factor of a Matrix

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

Drop "Explicit Zeroes" from a Sparse Matrix

Construct a Block Diagonal Matrix

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

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

chol2inv-methods

Inverse from Cholesky Factor

Multiplication by Factors from Matrix Factorizations

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

dgeMatrix-class

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

“Low Level” Coercions and Methods

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

Scale the Rows and Columns of a Matrix

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

Matrix Exponential

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

Virtual Class "index" - Simple Class for Matrix Indices

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

Utilities for Permutation Vectors

externalFormats

Read and write external matrix formats

colSums-methods

Form Row and Column Sums and Means

generalMatrix-class

Class "generalMatrix" of General Matrices

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

kronecker-methods

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

coerce-methods-graph

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

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

nsparseMatrix-classes

Sparse "pattern" Matrices

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

Methods for image() in Package 'Matrix'

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

Permutation matrices

dsyMatrix-class

Symmetric Dense (Packed or Unpacked) Numeric Matrices

Extract bands of a matrix

indMatrix-class

dtCMatrix-class

Triangular, (compressed) sparse column matrices

dtrMatrix-class

Triangular, dense, numeric matrices

Are the Dimnames dn NULL-like ?

lsparseMatrix-classes

Sparse logical matrices

Expand Matrix Factorizations

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

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

lsyMatrix-class

Symmetric Dense Logical Matrices

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

Nearest Positive Definite Matrix

The Number of Non-Zero Values of a Matrix

ltrMatrix-class

Triangular Dense Logical Matrices

Methods for LU Factorization

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

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

Dulmage-Mendelsohn Permutation / Decomposition

dpoMatrix-class

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

Format and Print Sparse Matrices Flexibly

packedMatrix-class

Virtual Class "packedMatrix" of Packed Dense Matrices

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

Rank of a Matrix

Estimate the Reciprocal Condition Number

Random Sparse Matrix

sparse.model.matrix

Construct Sparse Design / Model Matrices

Methods in Package Matrix for Function solve

Methods for QR Factorization

Class "nMatrix" of Non-zero Pattern Matrices

Sparse LU Factorizations

Sparse QR Factorizations

Sparse Matrix Constructor From Triplet

sparseVector-class

Sparse Vector Classes

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

Updating and Downdating Sparse Cholesky Factorizations

Contiguity Matrix of World One-Degree Grid Cells

symmpart-methods

Symmetric Part and Skew(symmetric) Part of a Matrix

sparseMatrix-class

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

Unique (Sorted) TsparseMatrix Representations

Representation of Packed and Unpacked Dense Matrices

General Sparse Matrix Construction from Nonzero Entries

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

forceSymmetric-methods

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

Formatting Sparse Numeric Matrices Utilities

isSymmetric-methods

Methods for Function 'isSymmetric' in Package 'Matrix'

isTriangular-methods

Test whether a Matrix is Triangular or Diagonal

Map Matrix to its Triplet Representation

matmult-methods

Matrix (Cross) Products (of Transpose)

ntrMatrix-class

Triangular Dense Logical Matrices

Class "number" of Possibly Complex Numbers

Replicate Vectors into 'abIndex' Result

replValue-class

Virtual Class "replValue" - Simple Class for Subassignment Values

Sparse Vector Construction from Nonzero Entries

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

unpackedMatrix-class

Virtual Class "unpackedMatrix" of Unpacked Dense Matrices

Virtual Classes Not Yet Really Implemented and Used