rcrossref 1.1.0 2020-10-02

MINOR IMPROVEMENTS

  • move bibtex package to Suggests as it has been orphaned, use it conditionally (#209)
  • change all uses of tibble::tbl_df to tibble::as_tibble (#206)
  • additional fields now parsed in the cr_works() output: short-container-title, references-count, is-referenced-by-count, language, content-domain, and update-to (#208)

rcrossref 1.0.0 2020-03-19

MINOR IMPROVEMENTS

  • docs page vignette has names (#197)
  • query.title field query is no longer supported by Crossref, removed from package (#198)
  • fix some links in readme (#199)
  • improve documentation for how to do deep paging (new section “Deep paging”), and how to use the cursor specifically (#190)

BUG FIXES

  • fix error when progress used and when limit param not used (#190)
  • encoding fix for the Crossref RStudio Addin (#194) (#201)

rcrossref 0.9.2 2019-05-04

NEW FEATURES

MINOR IMPROVEMENTS

  • fix a test fixture that had non-ascii characters (#187)
  • cr_works() returned a tibble in the $data slot in each case except for when a single DOI was passed to the doi parameter. now fixed (#184) thanks @martinjhnhadley

rcrossref 0.9.0 2019-01-14

NEW FEATURES

MINOR IMPROVEMENTS

  • package tests now using vcr for HTTP request/response caching (#178) (#179)
  • in works data, now returning published-print and published-online fields (#181)
  • add new filters for /works routes (when works = TRUE): isbn, reference_visibility, has_content_domain, and has_domain_restriction (#176) (#177)
  • add new return element in /works routes (when works = TRUE): $reference gives the references cited in the article (these are not the articles citing the target article, sorry) (#176)
  • improve documentation on the “polite pool”. If you supply an email address Crossref will put you in the polite pool (#173) (#175) thanks @poldham
  • added example to cr_abstract() of handling many DOIs while allowing for failures without stopping progress (#174) thanks @zackbatist

BUG FIXES

  • fix internal parsing of funder data in cr_works() (#180) thanks @nicholasmfraser for the bug report
  • fix for cr_citation_count(): when given a bad/invalid/malformed DOI, throw warning and give back an NA (#164) thanks for the report @chreman
  • Fix for instances in the package where we incorrectly were doing logical comparison’s; detected via R_CHECK_LENGTH_1_LOGIC2

rcrossref 0.8.4 2018-08-06

NEW FEATURES

  • The RStudio Addin now includes ability to search by article metadata, e.g., title (#148) (#152)
  • you can now set a different base url for cr_cn() (#168)

MINOR IMPROVEMENTS

  • better behavior for cr_cn() when bibentry not valid, that is not parseable. before the package we use to parse bibtex would stop on invalid bibentry data, but now we get around the invalid bits and give back the bibentry (#147)
  • updated and improved documentation for filters (#161)
  • improved description of the dois parameter (#162) thanks @ms609
  • Much improved error behavior for cr_* functions. We now give errors like 404 (client error): /works/blblbl - Resource not found., which includes HTTP status code, major class of error (success, redirect, client, server), the route requested, and the error message (#163)

BUG FIXES

  • fixed bug in cr_works() in which field queries should have been possible for title and affiliation, but were not. Fixed now. (#149)
  • cr_journals() was not correctly parsing data when more than 1 ISSN given and works set to TRUE, fixed now (#156)
  • cr_journals() was not correctly parsing data when no ISSN found and works set to TRUE, fixed now (#150)
  • cr_journals() was not correctly handling queries with multiple ISSN’s and works set to FALSE, fixed now (#151)
  • fixed bug in cr_works(), and any other cr_* function that set works=TRUE. the license slot can have more than 1 result, and we were only giving the first back. fixed the parsing on this to give back all license results (#170)

rcrossref 0.8.0 2017-12-03

NEW FEATURES

  • Include documentation and internals to support passing a user supplied email to Crossref to get put into higher rate limit pool (#145) thanks @njahn82
  • Functions that operate on the /works route gain a select parameter to select certain fields to return (#146)

MINOR IMPROVEMENTS

  • Updated docs for additional options for the sort parameter (#142)
  • Updated docs for additional options for doing field queries (the flq parameter) (#143)
  • Filters: New filters added to the package, and some removed (e.g, publisher-name). You can see the filters with the functions filter_details/filter_names. Beware, some filters error sometimes with the Crossref API - they may not work, but they may, let me know at https://github.com/ropensci/rcrossref/issues or let Crossref know at https://github.com/CrossRef/rest-api-doc/issues (#136) (#139) (#141)

rcrossref 0.7.0 2017-04-28

NEW FEATURES

  • All text mining functionality moved into a new package: crminer https://github.com/ropensci/crminer . Functions that did text mining stuff now defunct, see ?rcrossref-defunct (#122)
  • All Crossref API requests now using https instead of http (#133)

MINOR IMPROVEMENTS

BUG FIXES

  • Fix to cr_prefixes to not fail when no results found (#130) thanks @globbestael
  • Fixed cr_works to allow queries like facet = license:* to be passed to facet parameter (was always allowed by Crossref, but we neglected to allow it - previously only allowed a boolean) (#129)
  • Fixed cr_funders and cr_journals to give back facet data along with other data (#134)
  • Fix to cr_* functions to check for a missing content-type headers and instead of failing, we continue anyway and try to parse data as sometimes Crossref doesn’t give back a content type header at all (#127)

rcrossref 0.6.0 2016-11-09

NEW FEATURES

MINOR IMPROVEMENTS

  • Added to man files where appropriate new 10K max value for the offset parameter (#126)
  • Added to pkg level man file new rate limit headers included, and how users can get to those, via config=verbose() call (#124)
  • Better failure modes on input parameters, still more work to do surely (#101)
  • sleeping now between tests to avoid making crossref rate limit gate keepers mad (#125)
  • cr_search and cr_search_free are now defunct. They were marked deprecated in previous version, and warned of defunct, and now they are defunct. Similar functionality can be done with e.g., cr_works() (#102)
  • crosscite is now defunct. The functionality of this function can be achieved with cr_cn() (#82)
  • cr_fundref is now defunct. Crossref changed their name fundref to funders, so we’ve changed our function, see cr_funders() (#83)
  • parameter sample maximum value is now 100, was previously 1000. documentation updated. (#118)
  • New filters has-clinical-trial-number and has-abstract added to the package, see ?filters for help (#120)

rcrossref 0.5.8 2016-08-26

NEW FEATURES

  • Added an RStudio Addin for searching for citations. See ?rcrossref for more. Addin authored by Hao Zhu @haozhu233 (#114)
  • New function cr_abstract() that tries to get an abstract via XML provided by Crossref - NOTE: an abstract is rarely available though (#116)

BUG FIXES

rcrossref 0.5.4 2016-07-20

MINOR IMPROVEMENTS

rcrossref 0.5.2 2016-02-10

NEW FEATURES

  • User-agent string is passed with every request to Crossref with names and versions of this package, and its HTTP dependency packages: httr and curl (which httr depends on). Will potentially be useful to Crossref to know how many requests come from this R client (#100)

DEPRECATED

  • cr_search() and cr_search_free() use old Crossref web services, so are now marked deprecated, and will throw a deprecation message, but can still be used. They will both be defunct in v0.6 of this package (#99)

MINOR IMPROVEMENTS

BUG FIXES

  • Bug fix to cr_journals() - fix to parse correctly on some failed requests (#97) thanks @nkorf
  • Bug fix to cr_fundref()/cr_funders() - parsing wasn’t working correctly in all cases

rcrossref 0.5.0 2016-01-20

Skipped v0.4 to v0.5 because of many changes - as described below.

NEW FEATURES

  • Support added for ‘deep paging’ with the newer Crossref search API. Two new params added to each function: cursor, which accepts a cursor alphanumeric string or the special *, which indicates that you want to initiate deep paging; cursor_max, which is not in the Crossref API, but just used here in this package to indicate where to stop - otherwise, you’d get all results, even if there was 70 million, for example. A new internal R6 class used to make cursor requests easy (#77)
  • New function id_converter() to get a PMID from a DOI and vice versa (#49)
  • Added a Code of Conduct.
  • New function cr_types(), along with its low level equivalent cr_types_() for when you just want a list or json back (#92)
  • New suite of functions composing a low-level API for the Crossref search API. These functions only do data request, and return json or a list, and do not attempt to parse to a data.frame. The new functions: cr_funders_(), cr_journals_(), cr_licenses_(), cr_members_(), cr_prefixes_(), cr_types_(), cr_works_(). These functions are a bit faster, and aren’t subject to parsing errors in the event of a change in the Crossref API. (#93)
  • Added new filter_names() and filter_details() functions to get information on what filters are available, the expected values, and what they mean.

MINOR IMPROVEMENTS

  • Added documentation for new filter types, and added them to list of filters for filter_names() and filter_details() (#73)
  • cr_funders() alias added to cr_fundref() (#74)
  • Made note in docs that funders without IDs don’t show up on the /funders route,s in cr_funders() (#79)
  • Made note in docs that sample parameter ignored unless works=TRUE (#81)
  • Added note to docs that only what is returned in the API is what is searched when you search the Crossref API - that is, abstracts and full text aren’t searched (#91)
  • cr_cn() now checks that the user supplied content-type is supported for the DOI minting agency associated with the DOI (#88) (thanks @njahn82)
  • Removed .progress parameter use internally where it wasn’t applicable.
  • sample parameter dropped from cr_licenses().
  • cr_works() parsing changed. We now don’t attempt to flatten nested arrays, but instead give them back as data.frame’s nested within the main data.frame. For example, author often has many entries, so we return that as a single column, but indexing to that column gives back a data.frame with a row for each author, and N number of columns. Hopefully this doesn’t break too much code downstream :)
  • Additional text added to the package level man file (?rcrossref) to explain: what you’re actually searching when you search; deprecated and defunct functions; and explanation of high vs. low level API.

BUG FIXES

  • Fix to cr_members() to warn on error instead of stop during parsing (#68)
  • Fix to internal parser for cr_works() to output links data, for full text links (#70)
  • Minor fix in cr_cn() example that didn’t work (#80)
  • Fixed parsing of affiliation data inside author object in Crossref search API returned data (#84)
  • Fixed parsing of funder award slot in Crossref search API returned data (#90)

DEPRECATED

  • crosscite() deprecated, will be removed in a future version of this package (#78)
  • cr_fundref() now has a deprecated message, and will be removed in the next version (#74)

rcrossref 0.3.4 2015-07-10

NEW FEATURES

BUG FIXES

  • Fixed problems related to httr v1 (#65)
  • Import all non-base R functions (#64)
  • The agency route was down used by the cr_agency() function, back up and fixed now (#63)

rcrossref 0.3.0 2015-03-04

NEW FEATURES

  • New function extract_pdf() to extract text from pdfs
  • New function cr_ft_links() to get links for full text content of an article (#10)
  • New function cr_ft_text() to get links for full text content of an article. In addition, cr_ft_pdf(), cr_ft_plain(), and cr_ft_xml() are convenience functions that will get the format pdf, plain text, or xml, respectively. You can of course specify format in the cr_ft_text() function with the type parameter (#10) (#42)

MINOR IMPROVEMENTS

  • Filled out more tests (#45)

BUG FIXES

  • No longer assign queried doi to the data.frame in cr_works(), which caused failure if a non-Crossref DOI included (#52)
  • pmid2doi() and doi2pmid() functions removed temporarily as the web service is down temporarily, but will be online again soon from Crossref (#48)

rcrossref 0.2.1 2014-12-11

MINOR IMPROVEMENTS

  • Fixes for man file examples. (#35)
  • cr_citation() is deprecated (stil useable, but will be removed in a future version of the package). use cr_cn() instead. (#34)

rcrossref 0.2.0 2014-11-29

NEW FEATURES

  • released to CRAN