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Matrix (version 1.2-18)

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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Install

install.packages('Matrix')

Monthly Downloads

155,110

Version

1.2-18

License

GPL (>= 2) | file LICENCE

Maintainer

Martin Maechler

Last Published

November 27th, 2019

Functions in Matrix (1.2-18)

LU (dense) Matrix Decompositions

Construct a Classed Matrix

Extract bands of a matrix

Virtual Class "Matrix" Class of Matrices

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

Sequence Generation of "abIndex", Abstract Index Vectors

MatrixFactorization-class

Class "MatrixFactorization" of Matrix Factorizations

RsparseMatrix-class

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

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

all.equal-methods

Matrix Package Methods for Function all.equal()

The Matrix (Super-) Class of a Class

Cholesky Decomposition of a Sparse Matrix

Khatri-Rao Matrix Product

Versions of 'cbind' and 'rbind' recursively built on cbind2/rbind2

chol2inv-methods

Inverse from Choleski or QR Decomposition -- Matrix Methods

Class "Schur" of Schur Matrix Factorizations

Form Row and Column Sums and Means

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

Choleski Decomposition - 'Matrix' S4 Generic and Methods

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

SparseM-conversions

Sparse Matrix Coercion from and to those from package SparseM

Construct a Block Diagonal Matrix

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

dgeMatrix-class

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

CsparseMatrix-class

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

Class "abIndex" of Abstract Index Vectors

dgTMatrix-class

Sparse matrices in triplet form

Boolean Arithmetic Matrix Products: %&% and Methods

dpoMatrix-class

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

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

Matrix Exponential

Expand a Decomposition into Factors

Inverse Permutation Vector

Schur Decomposition of a Matrix

Virtual Class "index" - Simple Class for Matrix Indices

USCounties Contiguity Matrix

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

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

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

Drop "Explicit Zeroes" from a Sparse Matrix

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

lsyMatrix-class

Symmetric Dense Logical Matrices

lsparseMatrix-classes

Sparse logical matrices

The Number of Non-Zero Values of a Matrix

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

dtCMatrix-class

Triangular, (compressed) sparse column matrices

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

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

Are the Dimnames dn NULL-like ?

ltrMatrix-class

Triangular Dense Logical Matrices

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

Formatting Sparse Numeric Matrices Utilities

(Generalized) Triangular Decomposition of a Matrix

ntrMatrix-class

Triangular Dense Logical Matrices

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

Virtual Classes Not Yet Really Implemented and Used

Random Sparse Matrix

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

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

Permutation matrices

Class "number" of Possibly Complex Numbers

generalMatrix-class

Class "generalMatrix" of General Matrices

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

graph-sparseMatrix

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

dsyMatrix-class

Symmetric Dense (Packed | Non-packed) Numeric Matrices

dtrMatrix-class

Triangular, dense, numeric matrices

sparse.model.matrix

Construct Sparse Design / Model Matrices

Up- and Down-Dating a Cholesky Decomposition

Multiplication by Decomposition Factors

Sparse Vector Construction from Nonzero Entries

isTriangular() and isDiagonal() Methods

Sparse LU decomposition of a square sparse matrix

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

externalFormats

Read and write external matrix formats

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

isSymmetric-methods

Methods for Function isSymmetric in Package 'Matrix'

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

Methods for image() in Package 'Matrix'

matrix-products

Matrix (Cross) Products (of Transpose)

Class "nMatrix" of Non-zero Pattern Matrices

Rank of a Matrix

Estimate the Reciprocal Condition Number

Format and Print Sparse Matrices Flexibly

Sparse QR decomposition of a sparse matrix

Nearest Positive Definite Matrix

QR Decomposition -- S4 Methods and Generic

indMatrix-class

sparseMatrix-class

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

kronecker-methods

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

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

General Sparse Matrix Construction from Nonzero Entries

nsparseMatrix-classes

Sparse "pattern" Matrices

Replicate Vectors into 'abIndex' Result

Symmetric Part and Skew(symmetric) Part of a Matrix

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

sparseVector-class

Sparse Vector Classes

Unique (Sorted) TsparseMatrix Representations

replValue-class

Virtual Class "replValue" - Simple Class for subassignment Values

Representation of Packed and Unpacked (Dense) Matrices

Sparse Matrix Constructor From Triplet

Methods in Package Matrix for Function solve()

Create Diagonal Matrix Object

Cholesky and Bunch-Kaufman Decompositions

Albers' example Matrix with "Difficult" Eigen Factorization

BunchKaufman-methods

Bunch-Kaufman Decomposition Methods

Generate a Hilbert matrix

CHMfactor-class

CHOLMOD-based Cholesky Factorizations

Koenker-Ng Example Sparse Model Matrix and Response Vector