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Matrix (version 1.6-1)

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

74,588

Version

1.6-1

License

GPL (>= 2) | file LICENCE

Maintainer

Martin Maechler

Last Published

August 14th, 2023

Functions in Matrix (1.6-1)

CsparseMatrix-class

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

Construct a Diagonal Matrix

Matrix-deprecated

Deprecated Functions in Package Matrix

Virtual Class "Matrix" of Matrices

Albers' example Matrix with "Difficult" Eigen Factorization

Construct a Classed Matrix

Contiguity Matrix of U.S. Counties

Defunct Functions in Package Matrix

Subassign-methods

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

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

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

CHMfactor-class

Sparse Cholesky Factorizations

Generate a Hilbert matrix

Construct a Block Diagonal Matrix

Subscript-methods

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

Compute the Cholesky Factor of a Matrix

Dense Cholesky Factorizations

Drop Non-Structural Zeros from a Sparse Matrix

chol2inv-methods

Inverse from Cholesky Factor

Koenker-Ng Example Sparse Model Matrix and Response Vector

The Matrix (Super-) Class of a Class

dgeMatrix-class

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

Khatri-Rao Matrix Product

MatrixFactorization-class

Virtual Class "MatrixFactorization" of Matrix Factorizations

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

Cholesky-methods

Methods for Cholesky Factorization

dgTMatrix-class

Sparse matrices in triplet form

Class "abIndex" of Abstract Index Vectors

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

Sequence Generation of "abIndex", Abstract Index Vectors

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

Matrix Exponential

boolmatmult-methods

Boolean Arithmetic Matrix Products: %&% and Methods

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

Scale the Rows and Columns of a Matrix

generalMatrix-class

Class "generalMatrix" of General Matrices

BunchKaufman-class

Dense Bunch-Kaufman Factorizations

coerce-methods-graph

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

BunchKaufman-methods

Methods for Bunch-Kaufman Factorization

externalFormats

Read and write external matrix formats

kronecker-methods

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

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

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

Are the Dimnames dn NULL-like ?

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

Dense LU Factorizations

isSymmetric-methods

Methods for Function 'isSymmetric' in Package 'Matrix'

RsparseMatrix-class

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

Methods for Schur Factorization

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

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

coerce-methods-SparseM

Sparse Matrix Coercion from and to those from package SparseM

nsparseMatrix-classes

Sparse "pattern" Matrices

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

Schur Factorizations

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

Extract bands of a matrix

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

Class "nMatrix" of Non-zero Pattern Matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

Rank of a Matrix

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

Estimate the Reciprocal Condition Number

sparse.model.matrix

Construct Sparse Design / Model Matrices

dsyMatrix-class

Symmetric Dense (Packed or Unpacked) Numeric Matrices

dtCMatrix-class

Triangular, (compressed) sparse column matrices

forceSymmetric-methods

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

sparseMatrix-class

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

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

Formatting Sparse Numeric Matrices Utilities

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

all.equal-methods

Matrix Package Methods for Function all.equal()

colSums-methods

Form Row and Column Sums and Means

Sparse LU Factorizations

isTriangular-methods

Test whether a Matrix is Triangular or Diagonal

Dulmage-Mendelsohn Permutation / Decomposition

dpoMatrix-class

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

Multiplication by Factors from Matrix Factorizations

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

lsparseMatrix-classes

Sparse logical matrices

Methods for image() in Package 'Matrix'

“Low Level” Coercions and Methods

lsyMatrix-class

Symmetric Dense Logical Matrices

Nearest Positive Definite Matrix

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

Permutation matrices

General Sparse Matrix Construction from Nonzero Entries

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

Map Matrix to its Triplet Representation

matmult-methods

Matrix (Cross) Products (of Transpose)

Replicate Vectors into 'abIndex' Result

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

indMatrix-class

replValue-class

Virtual Class "replValue" - Simple Class for Subassignment Values

ltrMatrix-class

Triangular Dense Logical Matrices

packedMatrix-class

Virtual Class "packedMatrix" of Packed Dense Matrices

Updating and Downdating Sparse Cholesky Factorizations

Methods in Package Matrix for Function solve

Contiguity Matrix of World One-Degree Grid Cells

Sparse Matrix Constructor From Triplet

symmpart-methods

Symmetric Part and Skew(symmetric) Part of a Matrix

Methods for LU Factorization

unpackedMatrix-class

Virtual Class "unpackedMatrix" of Unpacked Dense Matrices

ntrMatrix-class

Triangular Dense Logical Matrices

Virtual Classes Not Yet Really Implemented and Used

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

Class "number" of Possibly Complex Numbers

Format and Print Sparse Matrices Flexibly

Methods for QR Factorization

Sparse Vector Construction from Nonzero Entries

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

dtrMatrix-class

Triangular, dense, numeric matrices

Expand Matrix Factorizations

Virtual Class "index" - Simple Class for Matrix Indices

Utilities for Permutation Vectors

The Number of Non-Zero Values of a Matrix

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

Sparse QR Factorizations

Random Sparse Matrix

Representation of Packed and Unpacked Dense Matrices

Unique (Sorted) TsparseMatrix Representations

sparseVector-class

Sparse Vector Classes