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Working with multiple RCDF files

There are two common scenarios when working with multiple RCDF files:

  1. Load several files into R at once — useful when you want to analyse data from multiple files side by side. Tables with the same name are stacked automatically.
  2. Merge files into a new RCDF file — useful when you want to permanently combine files and share or archive the result as a single encrypted file.

Scenario 1 — Load multiple files into R

Pass a character vector of file paths (or a folder path) to read_rcdf(). Provide matching vectors of keys and passwords if the files were encrypted with different keys:

data <- read_rcdf(
  path = c(
    "path/to/file/01.rcdf",
    "path/to/file/02.rcdf",
    "path/to/file/03.rcdf"
  ),
  decryption_key = c(
    "keys/01-private-key.pem",
    "keys/02-private-key.pem",
    "keys/03-private-key.pem"
  ),
  password = c(
    "password01",
    "password02",
    "password03"
  )
)

Requirements for stacking to work: - Each RCDF file must contain tables with the same names and column structure. - Passwords must correspond positionally to their decryption keys.

Scenario 2 — Merge files into a new RCDF file

merge_rcdf() reads multiple RCDF files, stacks their tables, and saves the result as a brand-new encrypted RCDF file. This is handy for creating an archive or distributing a combined dataset to collaborators:

merge_rcdf(
  rcdf_files = c(
    "path/to/file/01.rcdf",
    "path/to/file/02.rcdf",
    "path/to/file/03.rcdf"
  ),
  decryption_key = c(
    "keys/01-private-key.pem",
    "keys/02-private-key.pem",
    "keys/03-private-key.pem"
  ),
  password = c(
    "password01",
    "password02",
    "password03"
  ),
  merged_file_path = "path/to/merged.rcdf"
)

The merged file is encrypted with its own key, which you supply via the pub_key argument (see ?merge_rcdf for all options).

For more on reading single files and exporting data, see vignette("rcdf").

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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