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Matrix (version 1.6-1.1)

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

118,373

Version

1.6-1.1

License

GPL (>= 2) | file LICENCE

Maintainer

Martin Maechler

Last Published

September 18th, 2023

Functions in Matrix (1.6-1.1)

Construct a Diagonal Matrix

Koenker-Ng Example Sparse Model Matrix and Response Vector

CsparseMatrix-class

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

Generate a Hilbert matrix

Dense LU Factorizations

The Matrix (Super-) Class of a Class

Khatri-Rao Matrix Product

Virtual Class "Matrix" of Matrices

MatrixFactorization-class

Virtual Class "MatrixFactorization" of Matrix Factorizations

Matrix-deprecated

Deprecated Functions in Package Matrix

RsparseMatrix-class

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

Construct a Classed Matrix

Schur Factorizations

Defunct Functions in Package Matrix

Contiguity Matrix of U.S. Counties

Class "abIndex" of Abstract Index Vectors

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

Subassign-methods

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

Sequence Generation of "abIndex", Abstract Index Vectors

Methods for Schur Factorization

Subscript-methods

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

coerce-methods-SparseM

Sparse Matrix Coercion from and to those from package SparseM

colSums-methods

Form Row and Column Sums and Means

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

Construct a Block Diagonal Matrix

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

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

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

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

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

Extract bands of a matrix

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

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

all.equal-methods

Matrix Package Methods for Function all.equal()

chol2inv-methods

Inverse from Cholesky Factor

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

Compute the Cholesky Factor of a Matrix

Scale the Rows and Columns of a Matrix

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

Dulmage-Mendelsohn Permutation / Decomposition

dgeMatrix-class

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

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

forceSymmetric-methods

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

Multiplication by Factors from Matrix Factorizations

Formatting Sparse Numeric Matrices Utilities

Methods for image() in Package 'Matrix'

“Low Level” Coercions and Methods

dsyMatrix-class

Symmetric Dense (Packed or Unpacked) Numeric Matrices

boolmatmult-methods

Boolean Arithmetic Matrix Products: %&% and Methods

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

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

kronecker-methods

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

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

dgTMatrix-class

Sparse matrices in triplet form

dtCMatrix-class

Triangular, (compressed) sparse column matrices

Drop Non-Structural Zeros from a Sparse Matrix

externalFormats

Read and write external matrix formats

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

Virtual Class "index" - Simple Class for Matrix Indices

indMatrix-class

sparseMatrix-class

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

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

ntrMatrix-class

Triangular Dense Logical Matrices

dpoMatrix-class

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

Matrix Exponential

General Sparse Matrix Construction from Nonzero Entries

Utilities for Permutation Vectors

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

ltrMatrix-class

Triangular Dense Logical Matrices

Sparse Matrix Constructor From Triplet

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

isSymmetric-methods

Methods for Function 'isSymmetric' in Package 'Matrix'

Updating and Downdating Sparse Cholesky Factorizations

generalMatrix-class

Class "generalMatrix" of General Matrices

The Number of Non-Zero Values of a Matrix

Sparse QR Factorizations

coerce-methods-graph

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

Map Matrix to its Triplet Representation

sparseVector-class

Sparse Vector Classes

Methods for LU Factorization

Contiguity Matrix of World One-Degree Grid Cells

isTriangular-methods

Test whether a Matrix is Triangular or Diagonal

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

matmult-methods

Matrix (Cross) Products (of Transpose)

lsparseMatrix-classes

Sparse logical matrices

nsparseMatrix-classes

Sparse "pattern" Matrices

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

unpackedMatrix-class

Virtual Class "unpackedMatrix" of Unpacked Dense Matrices

lsyMatrix-class

Symmetric Dense Logical Matrices

dtrMatrix-class

Triangular, dense, numeric matrices

Rank of a Matrix

Class "nMatrix" of Non-zero Pattern Matrices

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

Expand Matrix Factorizations

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

Replicate Vectors into 'abIndex' Result

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

replValue-class

Virtual Class "replValue" - Simple Class for Subassignment Values

Estimate the Reciprocal Condition Number

symmpart-methods

Symmetric Part and Skew(symmetric) Part of a Matrix

Permutation matrices

Are the Dimnames dn NULL-like ?

Virtual Classes Not Yet Really Implemented and Used

packedMatrix-class

Virtual Class "packedMatrix" of Packed Dense Matrices

sparse.model.matrix

Construct Sparse Design / Model Matrices

Sparse LU Factorizations

Format and Print Sparse Matrices Flexibly

Class "number" of Possibly Complex Numbers

Nearest Positive Definite Matrix

Methods for QR Factorization

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

Sparse Vector Construction from Nonzero Entries

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

Random Sparse Matrix

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

Methods in Package Matrix for Function solve

Unique (Sorted) TsparseMatrix Representations

Representation of Packed and Unpacked Dense Matrices

Albers' example Matrix with "Difficult" Eigen Factorization

BunchKaufman-class

Dense Bunch-Kaufman Factorizations

CHMfactor-class

Sparse Cholesky Factorizations

Dense Cholesky Factorizations

Cholesky-methods

Methods for Cholesky Factorization

BunchKaufman-methods

Methods for Bunch-Kaufman Factorization