Write an R object as a file — write

A wrapper around dput that facilitates saving R objects within knitr documents. Automatically handles file naming and directory creation, with support for preserving object structure and attributes.

write_obj(obj, file = NULL, target_dir = NULL, ...)

Arguments

obj: The R object to be written.
file: The name of the file to be written. If not specified, the label of the code block will be used.
target_dir: The directory where the file will be written. If not specified, the current working directory will be used.
...: Additional arguments to be passed to dput.

Value

The path of the written file.

Details

This function extends dput functionality by:

Using knitr code block labels for automatic file naming
Creating target directories if they don't exist
Preserving complex object structures and attributes
Supporting all R object types (vectors, lists, data frames, etc.)

Objects saved with this function can be read back using the standard dget function.

Examples

if (FALSE) { # \dontrun{
obj_dir <- file.path(tempdir(), "obj")

# Write a data frame as a file
write_obj(
  obj = mtcars,
  file = "mtcars_data",
  target_dir = obj_dir
)

# Read the file back into an R session
my_mtcars <- dget(file.path(obj_dir, "mtcars_data"))

unlink(obj_dir)
} # }