File-Backed Matrix Class with Convenient Read and Write Access

Interface for working with large matrices stored in files, not in computer memory. Supports multiple non-character data types (double, integer, logical and raw) of various sizes (e.g. 8 and 4 byte real values). Access to parts of the matrix is done by indexing, exactly as with usual R matrices. Supports very large matrices. Tested on multi-terabyte matrices. Allows for more than 2^32 rows or columns. Allows for quick addition of extra columns to a filematrix. Cross-platform as the package has R code only.


Reference manual

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1.3 by Andrey A Shabalin, 4 years ago

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Browse source code at

Authors: Andrey A Shabalin [aut, cre]

Documentation:   PDF Manual  

LGPL-3 license

Depends on methods, utils

Suggests knitr, rmarkdown, RSQLite

Imported by autoFRK.

See at CRAN