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Use open data in WORCS project

Source: R/save_load.R
open_data.Rd

This function saves a data.frame as a .csv file (using write.csv), stores a checksum in '.worcs', and amends the .gitignore file to exclude filename.

Usage

open_data(
  data,
  filename = paste0(deparse(substitute(data)), ".csv"),
  codebook = paste0("codebook_", deparse(substitute(data)), ".Rmd"),
  value_labels = paste0("value_labels_", deparse(substitute(data)), ".yml"),
  worcs_directory = ".",
  save_expression = write.csv(x = data, file = filename, row.names = FALSE),
  load_expression = read.csv(file = filename, stringsAsFactors = TRUE),
  ...
)

Arguments

data

A data.frame to save.

filename

Character, naming the file data should be written to. By default, constructs a filename from the name of the object passed to data.

codebook

Character, naming the file the codebook should be written to. An 'R Markdown' codebook will be created and rendered to github_document ('markdown' for 'GitHub'). By default, constructs a filename from the name of the object passed to data, adding the word 'codebook'. Set this argument to NULL to avoid creating a codebook.

value_labels

Character, naming the file the value labels of factors and ordinal variables should be written to. By default, constructs a filename from the name of the object passed to data, adding the word 'value_labels'. Set this argument to NULL to avoid creating a file with value labels.

worcs_directory

Character, indicating the WORCS project directory to which to save data. The default value "." points to the current directory.

save_expression

An R-expression used to save the data. Defaults to write.csv(x = data, file = filename, row.names = FALSE), which writes a comma-separated, spreadsheet-style file. The arguments data and filename are passed from open_data() to the expression defined in save_expression.

load_expression

An R-expression used to load the data from the file created by save_expression. Defaults to read.csv(file = filename, stringsAsFactors = TRUE). This expression is stored in the project's .worcs file, and invoked by load_data().

...

Additional arguments passed to and from functions.

Value

Returns NULL invisibly. This function is called for its side effects.

See also

open_data closed_data save_data

Examples

test_dir <- file.path(tempdir(), "data")
old_wd <- getwd()
dir.create(test_dir)
setwd(test_dir)
worcs:::write_worcsfile(".worcs")
df <- iris[1:5, ]
open_data(df, codebook = NULL)
#> ✔ Storing original data in 'df.csv' and updating the checksum in '.worcs'.
#> ✔ Updating '.gitignore'.
#> ✔ Storing value labels in 'value_labels_df.yml'.
setwd(old_wd)
unlink(test_dir, recursive = TRUE)