unbind: Save each column of a data frame to a separate file
In krlmlr/dfunbind: Column-wise loading of large data frames for package authors

Description Usage Arguments Details References

View source: R/unbind.R

This function save the data for each column of a data frame to a separate RDS file. If the target directory does not exist, it is created, including intermediate directories. Compression is optional.

1	unbind(x, .destdir, .compress = TRUE, .parallel = FALSE)

`x`	A data frame
`.destdir`	Where to save the files. For proper operation, it cannot contain other files with `.rds` extension.
`.compress`	Passed as `compress` to `save`
`.parallel`	If true, parallelize with `mclapply`

Use this function in a helper script for your package to add the files needed for column-wise loading this data set, e.g., in the data-raw directory. According to the "Writing R Extensions" manual, "the convention has grown up to use directory inst/extdata for [other data files needed by the package]"; use a subdirectory for each data frame.

R packages: External data

Writing R extensions

krlmlr/dfunbind documentation built on May 20, 2019, 6:16 p.m.