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Matrix (version 1.5-3)

Sparse and Dense Matrix Classes and Methods

Description

A rich hierarchy of matrix classes, including triangular, symmetric, and diagonal matrices, both dense and sparse and with pattern, logical and numeric entries. Numerous methods for and operations on these matrices, using 'LAPACK' and 'SuiteSparse' libraries.

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Version

Install

install.packages('Matrix')

Monthly Downloads

155,110

Version

1.5-3

License

GPL (>= 2) | file LICENCE

Homepage

https://Matrix.R-forge.R-project.org/

Maintainer

Martin Maechler

Last Published

November 11th, 2022

Functions in Matrix (1.5-3)

Construct a Classed Matrix

Cholesky and Bunch-Kaufman Decompositions

Construct a Diagonal Matrix

The Matrix (Super-) Class of a Class

Cholesky Decomposition of a Sparse Matrix

CsparseMatrix-class

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

Class "Schur" of Schur Matrix Factorizations

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

USCounties Contiguity Matrix

Extract bands of a matrix

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

chol2inv-methods

Inverse from Choleski or QR Decomposition -- Matrix Methods

BunchKaufman-methods

Bunch-Kaufman Decomposition Methods

Form Row and Column Sums and Means

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

Generate a Hilbert matrix

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

Schur Decomposition of a Matrix

Koenker-Ng Example Sparse Model Matrix and Response Vector

SparseM-conversions

Sparse Matrix Coercion from and to those from package SparseM

Sequence Generation of "abIndex", Abstract Index Vectors

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

generalMatrix-class

Class "generalMatrix" of General Matrices

graph-sparseMatrix

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

Virtual Class "index" - Simple Class for Matrix Indices

Albers' example Matrix with "Difficult" Eigen Factorization

Khatri-Rao Matrix Product

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

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

Inverse Permutation Vector

all.equal-methods

Matrix Package Methods for Function all.equal()

Nearest Positive Definite Matrix

Scale the Rows and Columns of a Matrix

MatrixFactorization-class

Class "MatrixFactorization" of Matrix Factorizations

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

RsparseMatrix-class

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

Dulmage-Mendelsohn Permutation / Decomposition

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

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

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

dtrMatrix-class

Triangular, dense, numeric matrices

dgTMatrix-class

Sparse matrices in triplet form

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

dgeMatrix-class

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

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

dpoMatrix-class

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

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

Drop "Explicit Zeroes" from a Sparse Matrix

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

LU (dense) Matrix Decompositions

externalFormats

Read and write external matrix formats

Multiplication by Decomposition Factors

dtCMatrix-class

Triangular, (compressed) sparse column matrices

Formatting Sparse Numeric Matrices Utilities

Methods in Package Matrix for Function solve()

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

Virtual Class "Matrix" Class of Matrices

Sparse Matrix Constructor From Triplet

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

The Cholesky Decomposition - 'Matrix' S4 Generic and Methods

nsparseMatrix-classes

Sparse "pattern" Matrices

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

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

isSymmetric-methods

Methods for Function 'isSymmetric' in Package 'Matrix'

Methods for image() in Package 'Matrix'

Class "abIndex" of Abstract Index Vectors

sparse.model.matrix

Construct Sparse Design / Model Matrices

indMatrix-class

Sparse LU decomposition of a square sparse matrix

Sparse QR decomposition of a sparse matrix

sparseVector-class

Sparse Vector Classes

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

Construct a Block Diagonal Matrix

Are the Dimnames dn NULL-like ?

Test whether a Matrix is Triangular or Diagonal

lsparseMatrix-classes

Sparse logical matrices

Class "nMatrix" of Non-zero Pattern Matrices

ltrMatrix-class

Triangular Dense Logical Matrices

(Generalized) Triangular Decomposition of a Matrix

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

lsyMatrix-class

Symmetric Dense Logical Matrices

Format and Print Sparse Matrices Flexibly

The Number of Non-Zero Values of a Matrix

QR Decomposition -- S4 Methods and Generic

Boolean Arithmetic Matrix Products: %&% and Methods

Up- and Down-Dating a Cholesky Decomposition

ntrMatrix-class

Triangular Dense Logical Matrices

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

World 1-degree grid contiguity matrix

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

Sparse Vector Construction from Nonzero Entries

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

Random Sparse Matrix

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

Unique (Sorted) TsparseMatrix Representations

Class "number" of Possibly Complex Numbers

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

unpackedMatrix-class

Virtual Class "unpackedMatrix" of Unpacked Dense Matrices

Representation of Packed and Unpacked Dense Matrices

Virtual Classes Not Yet Really Implemented and Used

dsyMatrix-class

Symmetric Dense (Packed or Unpacked) Numeric Matrices

Expand a (Matrix) Decomposition into Factors

Replicate Vectors into 'abIndex' Result

Matrix Exponential

kronecker-methods

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

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

replValue-class

Virtual Class "replValue" - Simple Class for Subassignment Values

Map Matrix to its Triplet Representation

Symmetric Part and Skew(symmetric) Part of a Matrix

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

matrix-products

Matrix (Cross) Products (of Transpose)

Permutation matrices

packedMatrix-class

Virtual Class "packedMatrix" of Packed Dense Matrices

Rank of a Matrix

Estimate the Reciprocal Condition Number

sparseMatrix-class

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

General Sparse Matrix Construction from Nonzero Entries

CHMfactor-class

CHOLMOD-based Cholesky Factorizations