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jmatrix
View on CRAN: Click
here
Download and install jmatrix package within the R console
Install from CRAN:
install.packages("jmatrix")
Install from Github:
library("remotes")
install_github("cran/jmatrix")
Install by package version:
library("remotes")
install_version("jmatrix", "1.5.2")
Attach the package and use:
library("jmatrix")
Maintained by
Juan Domingo
[Scholar Profile | Author Map]
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2022-11-01
Latest Update: 2023-06-22
Description:
A mainly instrumental package meant to allow other packages whose core is written in 'C++' to read, write
and manipulate matrices in a binary format so that the memory used for them is no more than strictly needed. Its functionality
is already inside 'parallelpam' and 'scellpam', so if you have installed any of these, you do not need to install 'jmatrix'.
Using just the needed memory is not always true with 'R' matrices or vectors, since by default they are of double type. Trials
like the 'float' package have been done, but to use them you have to coerce a matrix already loaded in 'R' memory to a float matrix,
and then you can delete it. The problem comes when your computer has not memory enough to hold the matrix in the first place, so
you are forced to load it by chunks. This is the problem this package tries to address (with partial success, but this is a
difficult problem since 'R' is not a strictly typed language, which is anyway quite hard to get in an interpreted language).
This package allows the creation and manipulation of full, sparse and symmetric matrices of any standard data type.
How to cite:
Juan Domingo (2022). jmatrix: Read from/Write to Disk Matrices with any Data Type in a Binary Format. R package version 1.5.2, https://cran.r-project.org/web/packages/jmatrix. Accessed 29 Apr. 2025.
Previous versions and publish date:
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imports, suggests or enhances
Complete documentation for jmatrix
Functions, R codes and Examples using
the jmatrix R package
Some associated functions: CsvToJMat . FilterJMatByName . GetJCol . GetJColByName . GetJColNames . GetJManyCols . GetJManyColsByNames . GetJManyRows . GetJManyRowsByNames . GetJNames . GetJRow . GetJRowByName . GetJRowNames . JMatInfo . JMatToCsv . JMatrixSetDebug . JWriteBin .
Some associated R codes: RcppExports.R . Full jmatrix package functions and examples
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