tw_get_p1: Get Wikidata property of an item as a character vector of the...
In tidywikidatar: Explore 'Wikidata' Through Tidy Data Frames

tw_get_p1

R Documentation

Get Wikidata property of an item as a character vector of the same length as input

Description

This function wraps tw_get_p(), but always sets only_first and preferred to TRUE in order to give back always a character vector.

Usage

tw_get_p1(
  id,
  p,
  latest_start_time = FALSE,
  language = tidywikidatar::tw_get_language(),
  id_df = NULL,
  cache = NULL,
  overwrite_cache = FALSE,
  cache_connection = NULL,
  disconnect_db = TRUE,
  wait = 0
)

Arguments

`id`	A character vector, must start with Q, e.g. "Q180099" for the anthropologist Margaret Mead. Can also be a data frame of one row, typically generated with `tw_search()` or a combination of `tw_search()` and `tw_filter_first()`.
`p`	A character vector, a property. Must always start with the capital letter "P", e.g. "P31" for "instance of".
`latest_start_time`	Logical, defaults to `FALSE`. If `TRUE`, returns the property that has the most recent start time ("P580") as qualifier if `only_first` is set to `TRUE`, or returns a list ordered by start time if `only_first` is set to `FALSE`. If no such qualifier is found, then it is ignored.
`language`	Defaults to language set with `tw_set_language()`; if not set, "en". Use "all_available" to keep all languages. For available language values, see the dedicated Wikimedia page.
`id_df`	Default to `NULL`. If given, it should be a dataframe typically generated with `tw_get()`, and is used instead of calling Wikidata or using SQLite cache. Ignored when `id` is of length more than one.
`cache`	Defaults to `NULL`. If given, it should be given either `TRUE` or `FALSE`. Typically set with `tw_enable_cache()` or `tw_disable_cache()`.
`overwrite_cache`	Logical, defaults to `FALSE`. If `TRUE`, it overwrites the table in the local sqlite database. Useful if the original Wikidata object has been updated.
`cache_connection`	Defaults to `NULL`. If `NULL`, and caching is enabled, `tidywikidatar` will use a local sqlite database. A custom connection to other databases can be given (see vignette `caching` for details).
`disconnect_db`	Defaults to `TRUE`. If `FALSE`, leaves the connection to cache open.
`wait`	In seconds, defaults to 0. Time to wait between queries to Wikidata. If data are cached locally, wait time is not applied. If you are running many queries systematically you may want to add some waiting time between queries.