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rtape (version 2.2)

Manage and manipulate large collections of R objects stored as tape-like files

Description

Storing huge data in RData format causes problems because of the necessity to load the whole file to the memory in order to access and manipulate objects inside such file; rtape is a simple solution to this problem. The package contains several wrappers of R built-in serialize/unserialize mechanism allowing user to quickly append objects to a tape-like file and later iterate over them requiring only one copy of each stored object to reside in memory a time.

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Version

Install

install.packages('rtape')

Monthly Downloads

154

Version

2.2

License

GPL-2

Maintainer

Miron Kursa

Last Published

July 31st, 2012

Functions in rtape (2.2)

rtapeLapply

Iterate over tape, gathering results.
rtapeRerecord

Rerecord the tape.
guessFileFormat

Automatically pick proper tape file format.
rtapeAsList

Load the whole tape as a list.
rtapeAdd

Add object to the tape.
rtape_apply

Iterate over tape, discarding results.
makeFileFormat

Setting tape file format/compression.
rtapeFilter

Rerecord the tape dropping certain objects.