load_data: Load WORCS project data

Description

Scans the WORCS project file for data that have been saved using open_data or closed_data, and loads these data into the global (working) environment. The function will load the original data if available on the current system. If only a synthetic dataset is available, this function loads the synthetic data. The name of the object containing the data is derived from the file name by removing the file extension, and, when applicable, the prefix "synthetic_". Thus, both "data.csv" and "synthetic_data.csv" will be loaded into an object called data.

Usage

load_data(worcs_directory = ".", to_envir = TRUE, envir = parent.frame(1))

Arguments

worcs_directory

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

to_envir

Logical, indicating whether to load objects directly into the environment, or return a list containing the objects. The environment is designated by argument envir. Loading objects directly into the global environment is user-friendly, but has the risk of overwriting an existing object with the same name, as explained in load. The function load_data gives a warning when this happens.

envir

The environment where the data should be loaded. The default value parent.frame(1) refers to the global environment in an interactive session.

Value

Returns a list invisibly. If to_envir = TRUE, this list contains the loaded data files. If to_envir = FALSE, the list is empty, and the loaded data files are attached directly to the global environment.

Examples

Run this code

# NOT RUN {
test_dir <- file.path(tempdir(), "loaddata")
old_wd <- getwd()
dir.create(test_dir)
setwd(test_dir)
worcs:::write_worcsfile(".worcs")
suppressWarnings(closed_data(iris[1:5, ], codebook = NULL))
load_data()
data
rm("data")
file.remove("data.csv")
load_data()
data
setwd(old_wd)
unlink(test_dir, recursive = TRUE)
# }

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