tw_extract_qualifier: Extract qualifiers from an object of class Wikidata created with WikidataR
Description
This function is mostly used internally and for testing.
Usage
tw_extract_qualifier(id, p, w = NULL)
Value
A data frame (a tibble) with eight columns: id for the input id, property, qualifier_id, qualifier_property, qualifier_value, rank, qualifier_value_type, and set (to distinguish sets of data when a property is present more than once)
Arguments
id
A character vector of length 1, must start with Q, e.g. "Q254" for Wolfgang Amadeus Mozart.
p
A character vector of length 1, a property. Must always start with the capital letter "P", e.g. "P31" for "instance of".
w
An object of class Wikidata created with WikidataR, typically created with WikidataR::get_item(id = id)