cr_licenses function

Search CrossRef licenses

cr_licenses(
  query = NULL,
  offset = NULL,
  limit = NULL,
  sort = NULL,
  order = NULL,
  .progress = "none",
  ...
)

cr_licenses_(
  query = NULL,
  offset = NULL,
  limit = NULL,
  sort = NULL,
  order = NULL,
  .progress = "none",
  parse = FALSE,
  ...
)

Arguments

• query: Query terms

• offset: Number of record to start at, from 1 to infinity.

• limit: Number of results to return in the query. Not relavant when searching with specific dois. Default: 20. Max: 1000

• sort: Field to sort on. Acceptable set of fields to sort on:

  • score OR relevance - Sort by relevance score
  • updated - Sort by date of most recent change to metadata. Currently the same as deposited.
  • deposited - Sort by time of most recent deposit
  • indexed - Sort by time of most recent index
  • published - Sort by publication date
  • published-print - Sort by print publication date
  • published-online - Sort by online publication date
  • issued - Sort by issued date (earliest known publication date)
  • is-referenced-by-count - Sort by number of times this DOI is referenced by other Crossref DOIs
  • references-count - Sort by number of references included in the references section of the document identified by this DOI

• order: (character) Sort order, one of 'asc' or 'desc'

• .progress: Show a plyr-style progress bar? Options are "none", "text", "tk", "win, and "time". See plyr::create_progress_bar()

  for details of each.

• ...: Named parameters passed on to crul::HttpClient()

• parse: (logical) Whether to output json FALSE or parse to list TRUE. Default: FALSE

Details

BEWARE: The API will only work for CrossRef DOIs.

NOTE: The API route behind this function does not support filters any more, so the filter parameter has been removed.

Examples

## Not run:

cr_licenses()
# query for something, e.g. a publisher
cr_licenses(query = 'elsevier')

# Low level function - does no parsing to data.frame, get json or a list
cr_licenses_()
cr_licenses_(query = "elsevier")
cr_licenses_(query = "elsevier", parse=TRUE)
## End(Not run)

References

https://github.com/CrossRef/rest-api-doc

See Also

Other crossref: cr_funders(), cr_journals(), cr_members(), cr_prefixes(), cr_types(), cr_works()