Skip to contents

Get Wikidata Item ID

Source: R/wikidata.R
get_wdid.Rd

Search www.wikidata.org for wikidata item identifiers. Note that this search is currently not limited to chemical substances, so be sure to check your results.

Usage

get_wdid(
  query,
  match = c("best", "first", "all", "ask", "na"),
  verbose = getOption("verbose"),
  language = "en"
)

Arguments

query

character; The searchterm

match

character; How should multiple hits be handeled? 'all' returns all matched IDs, 'first' only the first match, 'best' the best matching (by name) ID, 'ask' is a interactive mode and the user is asked for input, na' returns NA if multiple hits are found.

verbose

logical; print message during processing to console?

language

character; the language to search in

Value

if match = 'all' a list with ids, otherwise a dataframe with 4 columns: id, matched text, string distance to match and the queried string

Note

Only matches in labels are returned.

Examples

if (FALSE) { # \dontrun{
get_wdid('Triclosan', language = 'de')
get_wdid('DDT')
get_wdid('DDT', match = 'all')

# multiple inputs
comps <- c('Triclosan', 'Glyphosate')
get_wdid(comps)
} # }