Read a CSV file as a target

A convenience wrapper around tarchetypes::tar_file_read() for CSV files. Creates a pair of targets: one to track the file with format = "file", and another to read the file with readr::read_csv().

Usage

tar_csv_read(name, command, .readr_args = list(show_col_types = FALSE), ...)

Arguments

name

Symbol, name of the target.

command

Expression, R code that returns the file path to the CSV.

.readr_args

A named list of additional arguments passed to readr::read_csv(). Defaults to list(show_col_types = FALSE). Supplying this argument replaces the defaults entirely.

...

Additional arguments passed to targets::tar_target_raw() for the read target.

Value

A list of two target objects: a file-tracking target (name_file) and a CSV-reading target (name).

Examples

if (identical(Sys.getenv("TAR_EXAMPLES"), "true")) {
targets::tar_dir({
  targets::tar_script({
    library(targets)
    list(
      epitargets::tar_csv_read(my_data, "data.csv")
    )
  })
  targets::tar_manifest()
})
}