BunchKaufman-class Dense Bunch-Kaufman Factorizations BunchKaufman-methods Methods for Bunch-Kaufman Factorization CAex Albers' example Matrix with "Difficult" Eigen Factorization CHMfactor-class Sparse Cholesky Factorizations Cholesky-class Dense Cholesky Factorizations Cholesky-methods Methods for Cholesky Factorization CsparseMatrix-class Class "CsparseMatrix" of Sparse Matrices in Column-compressed Form Diagonal Construct a Diagonal Matrix Hilbert Generate a Hilbert matrix KNex Koenker-Ng Example Sparse Model Matrix and Response Vector KhatriRao Khatri-Rao Matrix Product Matrix Construct a Classed Matrix Matrix-class Virtual Class "Matrix" of Matrices Matrix-notyet Virtual Classes Not Yet Really Implemented and Used MatrixClass The Matrix (Super-) Class of a Class MatrixFactorization-class Virtual Class "MatrixFactorization" of Matrix Factorizations RsparseMatrix-class Class "RsparseMatrix" of Sparse Matrices in Row-compressed Form Schur-class Schur Factorizations Schur-methods Methods for Schur Factorization Subassign-methods Methods for "[<-" - Assigning to Subsets for 'Matrix' Subscript-methods Methods for "[": Extraction or Subsetting in Package 'Matrix' TsparseMatrix-class Class "TsparseMatrix" of Sparse Matrices in Triplet Form USCounties Contiguity Matrix of U.S. Counties abIndex-class Class "abIndex" of Abstract Index Vectors abIseq Sequence Generation of "abIndex", Abstract Index Vectors all.equal-methods Matrix Package Methods for Function all.equal() asUniqueT Standardize a Sparse Matrix in Triplet Format atomicVector-class Virtual Class "atomicVector" of Atomic Vectors band-methods Extract bands of a matrix bandSparse Construct Sparse Banded Matrix from (Sup-/Super-) Diagonals bdiag Construct a Block Diagonal Matrix boolmatmult-methods Boolean Arithmetic Matrix Products: '%&%' and Methods cbind2-methods 'cbind()' and 'rbind()' recursively built on cbind2/rbind2 chol-methods Compute the Cholesky Factor of a Matrix chol2inv-methods Inverse from Cholesky Factor coerce-methods-SparseM Sparse Matrix Coercion from and to those from package 'SparseM' coerce-methods-graph Conversions "graph" <-> (sparse) Matrix colSums-methods Form Row and Column Sums and Means compMatrix-class Class "compMatrix" of Composite (Factorizable) Matrices condest Compute Approximate CONDition number and 1-Norm of (Large) Matrices dMatrix-class (Virtual) Class "dMatrix" of "double" Matrices ddenseMatrix-class Virtual Class "ddenseMatrix" of Numeric Dense Matrices ddiMatrix-class Class "ddiMatrix" of Diagonal Numeric Matrices denseLU-class Dense LU Factorizations denseMatrix-class Virtual Class "denseMatrix" of All Dense Matrices dgCMatrix-class Compressed, sparse, column-oriented numeric matrices dgRMatrix-class Sparse Compressed, Row-oriented Numeric Matrices dgTMatrix-class Sparse matrices in triplet form dgeMatrix-class Class "dgeMatrix" of Dense Numeric (S4 Class) Matrices diagU2N Transform Triangular Matrices from Unit Triangular to General Triangular and Back diagonalMatrix-class Class "diagonalMatrix" of Diagonal Matrices dimScale Scale the Rows and Columns of a Matrix dmperm Dulmage-Mendelsohn Permutation / Decomposition dpoMatrix-class Positive Semi-definite Dense (Packed | Non-packed) Numeric Matrices drop0 Drop Non-Structural Zeros from a Sparse Matrix dsCMatrix-class Numeric Symmetric Sparse (column compressed) Matrices dsRMatrix-class Symmetric Sparse Compressed Row Matrices dsparseMatrix-class Virtual Class "dsparseMatrix" of Numeric Sparse Matrices dsyMatrix-class Symmetric Dense (Packed or Unpacked) Numeric Matrices dtCMatrix-class Triangular, (compressed) sparse column matrices dtRMatrix-class Triangular Sparse Compressed Row Matrices dtpMatrix-class Packed Triangular Dense Matrices - "dtpMatrix" dtrMatrix-class Triangular, dense, numeric matrices expand-methods Expand Matrix Factorizations expm-methods Matrix Exponential facmul-methods Multiplication by Factors from Matrix Factorizations fastMisc "Low Level" Coercions and Methods forceSymmetric-methods Force a Matrix to 'symmetricMatrix' Without Symmetry Checks formatSparseM Formatting Sparse Numeric Matrices Utilities generalMatrix-class Class "generalMatrix" of General Matrices image-methods Methods for image() in Package 'Matrix' indMatrix-class Index Matrices index-class Virtual Class "index" - Simple Class for Matrix Indices invertPerm Utilities for Permutation Vectors is.na-methods is.na(), is.finite() Methods for 'Matrix' Objects is.null.DN Are the Dimnames 'dn' NULL-like ? isSymmetric-methods Methods for Function 'isSymmetric' in Package 'Matrix' isTriangular-methods Test whether a Matrix is Triangular or Diagonal kronecker-methods Methods for Function 'kronecker()' in Package 'Matrix' ldenseMatrix-class Virtual Class "ldenseMatrix" of Dense Logical Matrices ldiMatrix-class Class "ldiMatrix" of Diagonal Logical Matrices lgeMatrix-class Class "lgeMatrix" of General Dense Logical Matrices lsparseMatrix-class Sparse logical matrices lsyMatrix-class Symmetric Dense Logical Matrices ltrMatrix-class Triangular Dense Logical Matrices lu-methods Methods for LU Factorization mat2triplet Map Matrix to its Triplet Representation matmult-methods Matrix (Cross) Products (of Transpose) nMatrix-class Class "nMatrix" of Non-zero Pattern Matrices ndenseMatrix-class Virtual Class "ndenseMatrix" of Dense Logical Matrices nearPD Nearest Positive Definite Matrix ngeMatrix-class Class "ngeMatrix" of General Dense Nonzero-pattern Matrices nnzero-methods The Number of Non-Zero Values of a Matrix norm-methods Matrix Norms nsparseMatrix-class Sparse "pattern" Matrices nsyMatrix-class Symmetric Dense Nonzero-Pattern Matrices ntrMatrix-class Triangular Dense Logical Matrices number-class Class "number" of Possibly Complex Numbers pMatrix-class Permutation matrices pack Representation of Packed and Unpacked Dense Matrices packedMatrix-class Virtual Class '"packedMatrix"' of Packed Dense Matrices printSpMatrix Format and Print Sparse Matrices Flexibly qr-methods Methods for QR Factorization rankMatrix Rank of a Matrix rcond-methods Estimate the Reciprocal Condition Number readHB Read and write external matrix formats rep2abI Replicate Vectors into 'abIndex' Result replValue-class Virtual Class "replValue" - Simple Class for Subassignment Values rleDiff-class Class "rleDiff" of rle(diff(.)) Stored Vectors rsparsematrix Random Sparse Matrix solve-methods Methods in Package 'Matrix' for Function 'solve' spMatrix Sparse Matrix Constructor From Triplet sparse.model.matrix Construct Sparse Design / Model Matrices sparseLU-class Sparse LU Factorizations sparseMatrix General Sparse Matrix Construction from Nonzero Entries sparseMatrix-class Virtual Class "sparseMatrix" - Mother of Sparse Matrices sparseQR-class Sparse QR Factorizations sparseVector Sparse Vector Construction from Nonzero Entries sparseVector-class Sparse Vector Classes symmetricMatrix-class Virtual Class of Symmetric Matrices in Package Matrix symmpart-methods Symmetric Part and Skew(symmetric) Part of a Matrix triangularMatrix-class Virtual Class of Triangular Matrices in Package Matrix unpackedMatrix-class Virtual Class '"unpackedMatrix"' of Unpacked Dense Matrices updown-methods Updating and Downdating Sparse Cholesky Factorizations wrld_1deg Contiguity Matrix of World One-Degree Grid Cells