saves: Fast load variables

The purpose of this package is to be able to save and load only the needed variables/columns of a dataframe in special binary files (tar archives) - which seems to be a lot faster method than loading the whole binary object (RData files) via load() function, or than loading columns from SQLite/MySQL databases via SQL commands (see vignettes). Performance gain on SSD drives is a lot more sensible compared to basic load() function. The performance improvement gained by loading only the chosen variables in binary format can be useful in some special cases (e.g. where merging data tables is not an option and very different datasets are needed for reporting), but be sure if using this package that you really need this, as non-standard file formats are used!

Author
Gergely Daróczi <gergely@snowl.net>
Date of publication
2013-12-27 16:07:34
Maintainer
Gergely Daróczi <daroczig@rapporter.net>
License
AGPL-3
Version
0.5
URLs

View on CRAN

Man pages

evs.2000.hun
European Values Survey (2000) - Hungary
loads
Loading only given variables of a data.frame from binary file
saves
Save the variables of a data.frame in distinct binary files

Files in this package

saves
saves/inst
saves/inst/CITATION
saves/inst/doc
saves/inst/doc/saves.Rnw
saves/inst/doc/saves.pdf
saves/NAMESPACE
saves/CHANGELOG
saves/data
saves/data/evs.2000.hun.RData
saves/R
saves/R/docu.R
saves/R/saves.R
saves/R/loads.R
saves/vignettes
saves/vignettes/saves.Rnw
saves/vignettes/img
saves/vignettes/img/save.pdf
saves/vignettes/img/ess.pdf
saves/vignettes/img/diamonds_server.pdf
saves/vignettes/img/diamonds.pdf
saves/vignettes/img/ess_server.pdf
saves/MD5
saves/README
saves/build
saves/build/vignette.rds
saves/DESCRIPTION
saves/man
saves/man/loads.Rd
saves/man/evs.2000.hun.Rd
saves/man/saves.Rd