Extra Methods for Sparse Matrices

Extends sparse matrix and vector classes from the 'Matrix' package by providing: (a) Methods and operators that work natively on CSR formats (compressed sparse row, a.k.a. 'RsparseMatrix') such as slicing/sub-setting, assignment, rbind(), mathematical operators for CSR and COO such as addition ("+") or sqrt(), and methods such as diag(); (b) Multi-threaded matrix multiplication and cross-product for many types, including the 'float32' type from 'float'; (c) Coercion methods between pairs of classes which are not present in 'Matrix', such as 'dgCMatrix' -> 'ngRMatrix', as well as convenience conversion functions; (d) Utility functions for sparse matrices such as sorting the indices or removing zero-valued entries; (e) Fast transposes that work by outputting in the opposite storage format; (f) Faster replacements for many 'Matrix' methods for all sparse types, such as slicing and elementwise multiplication.


Reference manual

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0.1.4 by David Cortes, a month ago


Report a bug at https://github.com/david-cortes/MatrixExtra/issues

Browse source code at https://github.com/cran/MatrixExtra

Authors: David Cortes [aut, cre, cph] , Dmitry Selivanov [cph]

Documentation:   PDF Manual  

GPL (>= 2) license

Imports Rcpp, RhpcBLASctl, float

Depends on Matrix, methods

Suggests testthat, data.table, knitr, rmarkdown

Linking to Rcpp

Suggested by cmfrec, readsparse.

See at CRAN