A data frame where each row is a particular dataset and its
characteristics: dataset_id, dataset_name,
dataset_origin_name (unique identifier for groups of datasets that
may share children), language, form, form_type,
contributor (contributor name and affiliated institution),
citation, license, longitudinal (whether dataset
includes longitudinal participants). Also includes summary statistics on a
dataset if the admin_data flag is TRUE: number of
administrations (n_admins).
Arguments
language
An optional string specifying which language's datasets to
retrieve.
form
An optional string specifying which form's datasets to retrieve.
admin_data
A logical indicating whether to include summary-level
statistics on the administrations within a dataset.
db_args
List with arguments to connect to wordbank mysql database
(host, dbname, user, and password).