get_dataset {dataverse}

Get dataset metadata

Description

Retrieve metadata. To actually download a data file, see get_file or get_dataframe_by_name.

Usage

get_dataset(
  dataset,
  version = ":latest",
  key = Sys.getenv("DATAVERSE_KEY"),
  server = Sys.getenv("DATAVERSE_SERVER"),
  ...
)

dataset_metadata(
  dataset,
  version = ":latest",
  block = "citation",
  key = Sys.getenv("DATAVERSE_KEY"),
  server = Sys.getenv("DATAVERSE_SERVER"),
  ...
)

dataset_files(
  dataset,
  version = ":latest",
  key = Sys.getenv("DATAVERSE_KEY"),
  server = Sys.getenv("DATAVERSE_SERVER"),
  ...
)

Arguments

dataset

A character specifying a persistent identification ID for a dataset, for example "doi:10.70122/FK2/HXJVJU". Alternatively, an object of class “dataverse_dataset” obtained by dataverse_contents().

version

A character string specifying a version of the dataset. This can be one of “:draft” (the current draft), “:latest” (the latest draft, if it exists, or the latest published version), “:latest-published” (the latest published version, ignoring any draft), or “x.y” (where ‘⁠x⁠’ is a major version and ‘⁠y⁠’ is a minor version; the ‘⁠.y⁠’ can be omitted to obtain a major version). In lieu of this, a dataset's version-specific identification number can be used for the dataset argument.

key

A character string specifying a Dataverse server API key. If one is not specified, functions calling authenticated API endpoints will fail. Keys can be specified atomically or globally using Sys.setenv("DATAVERSE_KEY" = "examplekey").

server

A character string specifying a Dataverse server. Multiple Dataverse installations exist, with "dataverse.harvard.edu" being the most major. The server can be defined each time within a function, or it can be set as a default via an environment variable. To set a default, run Sys.setenv("DATAVERSE_SERVER" = "dataverse.harvard.edu") or add ⁠DATAVERSE_SERVER = "dataverse.harvard.edu⁠ in one's .Renviron file (usethis::edit_r_environ()), with the appropriate domain as its value.

...

Additional arguments passed to an HTTP request function, such as GET, POST, or DELETE.

block

A character string specifying a metadata block to retrieve. By default this is “citation”. Other values may be available, depending on the dataset, such as “geospatial” or “socialscience”.

Details

get_dataset retrieves details about a Dataverse dataset.

dataset_metadata returns a named metadata block for a dataset. This is already returned by get_dataset, but this function allows you to retrieve just a specific block of metadata, such as citation information.

dataset_files returns a list of files in a dataset, similar to get_dataset. The difference is that this returns only a list of “dataverse_dataset” objects, whereas get_dataset returns metadata and a data.frame of files (rather than a list of file objects).

Value

A list of class “dataverse_dataset” or a list of a form dependent on the specific metadata block retrieved. dataset_files returns a list of objects of class “dataverse_file”.

See Also

get_file

Examples

## Not run: 
# https://demo.dataverse.org/dataverse/dataverse-client-r
Sys.setenv("DATAVERSE_SERVER" = "demo.dataverse.org")

# download file from:
dv <- get_dataverse("dataverse-client-r")
contents <- dataverse_contents(dv)[[1]]

dataset_files(contents[[1]])
get_dataset(contents[[1]])
dataset_metadata(contents[[1]])

Sys.unsetenv("DATAVERSE_SERVER")

## End(Not run)