checkRdaFiles

From tools v3.1.0 by R-core R-core@R-project.org

Report on Details of Saved Images or Re-saves them

This reports for each of the files produced by save the size, if it was saved in ASCII or XDR binary format, and if it was compressed (and if so in what format).

Usually such files have extension ‘.rda’ or ‘.RData’, hence the name of the function.

Keywords: utilities

Usage

checkRdaFiles(paths)
resaveRdaFiles(paths, compress = c("auto", "gzip", "bzip2", "xz"), compression_level)

Arguments

paths: A character vector of paths to save files. If this specifies a single directory, it is taken to refer to all ‘.rda’ and ‘.RData’ files in that directory.
compress, compression_level: type and level of compression: see save.

Details

compress = "auto" asks R to choose the compression and ignores compression_level. It will try "gzip", "bzip2" and if the "gzip" compressed size is over 10Kb, "xz" and choose the smallest compressed file (but with a 10% bias towards "gzip"). This can be slow.

Value

size: numeric: file size in bytes, NA if the file does not exist.
ASCII: logical: true for save(ASCII = TRUE), NA if the format is not that of an R save file.
compress: character: type of compression. One of "gzip", "bzip2", "xz", "none" or "unknown" (which means that if this is an R save file it is from a later version of R).
version: integer: the version of the save -- usually 2 but 1 for very old files, and NA for other files.

Documentation reproduced from package tools, version 3.1.0, License: Part of R 3.1.0

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