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Matrix (version 1.2-16)

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

55,853

Version

1.2-16

License

GPL (>= 2) | file LICENCE

Maintainer

Martin Maechler

Last Published

March 8th, 2019

Functions in Matrix (1.2-16)

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

LU (dense) Matrix Decompositions

Transform Triangular Matrices from Unit Triangular to General Triangular and Back

Class "abIndex" of Abstract Index Vectors

dtrMatrix-class

Triangular, dense, numeric matrices

diagonalMatrix-class

Class "diagonalMatrix" of Diagonal Matrices

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

ddenseMatrix-class

Virtual Class "ddenseMatrix" of Numeric Dense Matrices

externalFormats

Read and write external matrix formats

dtpMatrix-class

Packed Triangular Dense Matrices - "dtpMatrix"

Virtual Class "Matrix" Class of Matrices

Extract bands of a matrix

SparseM-conversions

Sparse Matrix Coercion from and to those from package SparseM

dgCMatrix-class

Compressed, sparse, column-oriented numeric matrices

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

Construct a Block Diagonal Matrix

Boolean Arithmetic Matrix Products: %&% and Methods

Multiplication by Decomposition Factors

MatrixFactorization-class

Class "MatrixFactorization" of Matrix Factorizations

RsparseMatrix-class

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

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

CsparseMatrix-class

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

dgRMatrix-class

Sparse Compressed, Row-oriented Numeric Matrices

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

isSymmetric-methods

Methods for Function isSymmetric in Package 'Matrix'

Sequence Generation of "abIndex", Abstract Index Vectors

compMatrix-class

Class "compMatrix" of Composite (Factorizable) Matrices

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

isTriangular() and isDiagonal() Methods

TsparseMatrix-class

Class "TsparseMatrix" of Sparse Matrices in Triplet Form

matrix-products

Matrix (Cross) Products (of Transpose)

Class "Schur" of Schur Matrix Factorizations

ddiMatrix-class

Class "ddiMatrix" of Diagonal Numeric Matrices

dsparseMatrix-class

Virtual Class "dsparseMatrix" of Numeric Sparse Matrices

Expand a Decomposition into Factors

denseMatrix-class

Virtual Class "denseMatrix" of All Dense Matrices

dsyMatrix-class

Symmetric Dense (Packed | Non-packed) Numeric Matrices

generalMatrix-class

Class "generalMatrix" of General Matrices

Matrix Exponential

Class "nMatrix" of Non-zero Pattern Matrices

nsyMatrix-class

Symmetric Dense Nonzero-Pattern Matrices

graph-sparseMatrix

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

Schur Decomposition of a Matrix

USCounties Contiguity Matrix

chol2inv-methods

Inverse from Choleski or QR Decomposition -- Matrix Methods

all.equal-methods

Matrix Package Methods for Function all.equal()

ntrMatrix-class

Triangular Dense Logical Matrices

Random Sparse Matrix

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

Construct a Classed Matrix

Form Row and Column Sums and Means

atomicVector-class

Virtual Class "atomicVector" of Atomic Vectors

Virtual Classes Not Yet Really Implemented and Used

dpoMatrix-class

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

The Matrix (Super-) Class of a Class

dsCMatrix-class

Numeric Symmetric Sparse (column compressed) Matrices

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

Choleski Decomposition - 'Matrix' S4 Generic and Methods

Up- and Down-Dating a Cholesky Decomposition

lsparseMatrix-classes

Sparse logical matrices

dsRMatrix-class

Symmetric Sparse Compressed Row Matrices

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

Drop "Explicit Zeroes" from a Sparse Matrix

Methods for image() in Package 'Matrix'

lsyMatrix-class

Symmetric Dense Logical Matrices

(Generalized) Triangular Decomposition of a Matrix

ltrMatrix-class

Triangular Dense Logical Matrices

indMatrix-class

Format and Print Sparse Matrices Flexibly

QR Decomposition -- S4 Methods and Generic

Force a Matrix to 'symmetricMatrix' Without Symmetry Checks

Formatting Sparse Numeric Matrices Utilities

kronecker-methods

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

ldenseMatrix-class

Virtual Class "ldenseMatrix" of Dense Logical Matrices

Sparse Matrix Constructor From Triplet

Methods in Package Matrix for Function solve()

dgTMatrix-class

Sparse matrices in triplet form

Are the Dimnames dn NULL-like ?

ldiMatrix-class

Class "ldiMatrix" of Diagonal Logical Matrices

Symmetric Part and Skew(symmetric) Part of a Matrix

triangularMatrix-class

Virtual Class of Triangular Matrices in Package Matrix

ndenseMatrix-class

Virtual Class "ndenseMatrix" of Dense Logical Matrices

dgeMatrix-class

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

lgeMatrix-class

Class "lgeMatrix" of General Dense Logical Matrices

ngeMatrix-class

Class "ngeMatrix" of General Dense Nonzero-pattern Matrices

The Number of Non-Zero Values of a Matrix

Nearest Positive Definite Matrix

dtCMatrix-class

Triangular, (compressed) sparse column matrices

Rank of a Matrix

sparseMatrix-class

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

Estimate the Reciprocal Condition Number

Replicate Vectors into 'abIndex' Result

General Sparse Matrix Construction from Nonzero Entries

Sparse Vector Construction from Nonzero Entries

sparse.model.matrix

Construct Sparse Design / Model Matrices

symmetricMatrix-class

Virtual Class of Symmetric Matrices in Package Matrix

replValue-class

Virtual Class "replValue" - Simple Class for subassignment Values

Sparse QR decomposition of a sparse matrix

dtRMatrix-class

Triangular Sparse Compressed Row Matrices

sparseVector-class

Sparse Vector Classes

Virtual Class "index" - Simple Class for Matrix Indices

Inverse Permutation Vector

Sparse LU decomposition of a square sparse matrix

nsparseMatrix-classes

Sparse "pattern" Matrices

Unique (Sorted) TsparseMatrix Representations

Class "number" of Possibly Complex Numbers

Permutation matrices

Representation of Packed and Unpacked (Dense) Matrices

BunchKaufman-methods

Bunch-Kaufman Decomposition Methods

Koenker-Ng Example Sparse Model Matrix and Response Vector

Albers' example Matrix with "Difficult" Eigen Factorization

Khatri-Rao Matrix Product

Create Diagonal Matrix Object

Generate a Hilbert matrix

CHMfactor-class

CHOLMOD-based Cholesky Factorizations

Cholesky and Bunch-Kaufman Decompositions

Cholesky Decomposition of a Sparse Matrix