Wolfram Language Paclet Repository
Community-contributed installable additions to the Wolfram Language
SSparseMatrix objects
The paclet "SSparseMatrix" provides functions for manipulating objects with head that behave like objects, but have the added functionalities to use column names and row names in a manner similar to the matrix functionalities of the programming languages R and S.
More concretely, "SSparseMatrix" provides sub-matrix extraction by column and row names, column- and row names propagation for dot products, column- and row binding of sparse matrices, column- and row sums, etc.
The main implementation idea is fairly simple: we can use associations or replacement rules to map row names and column names into integers.
Similarly to how it is done in R and S, objects can have only strings as column names and row names.
Creation
Query functions
— gives the underlying sparse array object
Sums
Tabulation and visualization
Dot products
Part
Transpose
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