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Filematrix: 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.

Installation

Install CRAN Version

To install the CRAN version of filematrix, run

install.packages("filematrix")

Install GitHub Version

To install filematrix directly from GitHub, run

if(!requireNamespace("devtools", quietly = TRUE))
    install.packages("devtools")
devtools::install_github("andreyshabalin/filematrix")

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R package for handling big file-stored matrices

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