Install stable version from CRAN
install.packages("rcrossref")
Or development version from GitHub
devtools::install_github("ropensci/rcrossref")
library("rcrossref")
CrossRef's DOI Content Negotiation service, where you can citations back in various formats, including apa
cr_cn(dois = "10.1371/journal.pone.0112608", format = "text", style = "apa")
## [1] "Wang, Q., & Taylor, J. E. (2014). Quantifying Human Mobility Perturbation and Resilience in Hurricane Sandy. PLoS ONE, 9(11), e112608. doi:10.1371/journal.pone.0112608"
There are a lot more styles. We include a dataset as a character vector within the package, accessible via the get_styles() function, e.g.,
get_styles()[1:5]
## [1] "academy-of-management-review"
## [2] "acm-sig-proceedings-long-author-list"
## [3] "acm-sig-proceedings"
## [4] "acm-sigchi-proceedings-extended-abstract-format"
## [5] "acm-sigchi-proceedings"
bibtex
cat(cr_cn(dois = "10.1126/science.169.3946.635", format = "bibtex"))
## @article{Frank_1970,
## doi = {10.1126/science.169.3946.635},
## url = {http://dx.doi.org/10.1126/science.169.3946.635},
## year = 1970,
## month = {aug},
## publisher = {American Association for the Advancement of Science ({AAAS})},
## volume = {169},
## number = {3946},
## pages = {635--641},
## author = {H. S. Frank},
## title = {The Structure of Ordinary Water: New data and interpretations are yielding new insights into this fascinating substance},
## journal = {Science}
## }
bibentry
cr_cn(dois = "10.6084/m9.figshare.97218", format = "bibentry")
## Boettiger; C (2012). "Regime shifts in ecology and evolution (PhD
## Dissertation)." <URL:
## http://dx.doi.org/10.6084/m9.figshare.97218>, <URL:
## http://dx.doi.org/10.6084/m9.figshare.97218>.
Citation count, using OpenURL
cr_citation_count(doi="10.1371/journal.pone.0042793")
## [1] 5
There are two functions that use an older Crossre API: cr_search() and cr_search_free(). You can of course use them, but the newer Crossref API available through various functions (cr_agency(), cr_fundref(), cr_journals(), cr_licenses(), cr_members(), cr_prefixes(), and cr_works()) is more powerful and will recieve more support going forward. The following functions (of the newer set just mentioend) all use the CrossRef API.
cr_fundref(query="NSF")
## $meta
## total_results search_terms start_index items_per_page
## 1 8 NSF 0 20
##
## $data
## Source: local data frame [8 x 6]
##
## id location
## 1 501100004190 Norway
## 2 100000179 United States
## 3 501100000930 Australia
## 4 100008367 Denmark
## 5 100003187 United States
## 6 100000001 United States
## 7 100006445 United States
## 8 501100001809 China
## Variables not shown: name (chr), alt.names (chr), uri (chr), tokens (chr)
cr_agency(dois = '10.13039/100000001')
## $DOI
## [1] "10.13039/100000001"
##
## $agency
## $agency$id
## [1] "crossref"
##
## $agency$label
## [1] "CrossRef"
cr_works(filter=c(has_orcid=TRUE, from_pub_date='2004-04-04'), limit=1)
## $meta
## total_results search_terms start_index items_per_page
## 1 128970 NA 0 1
##
## $data
## Source: local data frame [1 x 24]
##
## issued score prefix
## 1 2014-12 1 http://id.crossref.org/prefix/10.1016
## Variables not shown: container.title (chr), reference.count (chr),
## deposited (chr), title (chr), type (chr), DOI (chr), URL (chr), source
## (chr), publisher (chr), indexed (chr), member (chr), ISBN (chr), subject
## (chr), author (chr), issue (chr), ISSN (chr), volume (chr), license_date
## (chr), license_content.version (chr), license_delay.in.days (chr),
## license_URL (chr)
##
## $facets
## NULL
cr_journals(issn=c('1803-2427','2326-4225'))
## Source: local data frame [2 x 12]
##
## issued container.title deposited
## 1
## 2
## Variables not shown: title (chr), publisher (chr), indexed (chr), ISBN
## (chr), subject (chr), author (chr), issue (chr), ISSN (chr), volume
## (chr)
cr_licenses(query = 'elsevier')
## $meta
## total_results search_terms start_index items_per_page
## 1 2 elsevier 0 20
##
## $data
## Source: local data frame [2 x 2]
##
## URL work.count
## 1 http://creativecommons.org/licenses/by/3.0/ 1
## 2 http://www.elsevier.com/tdm/userlicense/1.0/ 145
cr_prefixes(prefixes=c('10.1016','10.1371','10.1023','10.4176','10.1093'))
## $meta
## NULL
##
## $data
## Source: local data frame [5 x 3]
##
## member name
## 1 http://id.crossref.org/member/78 Elsevier BV
## 2 http://id.crossref.org/member/340 Public Library of Science (PLoS)
## 3 http://id.crossref.org/member/297 Springer Science + Business Media
## 4 http://id.crossref.org/member/1989 Co-Action Publishing
## 5 http://id.crossref.org/member/286 Oxford University Press (OUP)
## Variables not shown: prefix (chr)
##
## $facets
## list()
cr_members(query='ecology', limit = 5)
## $meta
## total_results search_terms start_index items_per_page
## 1 15 ecology 0 5
##
## $data
## Source: local data frame [5 x 40]
##
## id primary_name
## 1 3947 Korean Association of Human Ecology
## 2 2151 Ecology and Civil Engineering Society
## 3 2080 The Japan Society of Tropical Ecology
## 4 2232 Japanese Society of Health and Human Ecology
## 5 336 Japanese Society of Microbial Ecology
## Variables not shown: location (chr), last_status_check_time (date),
## backfile.dois (chr), current.dois (chr), total.dois (chr), prefixes
## (chr), coverge.resource.links.backfile (chr), coverge.funders.current
## (chr), coverge.funders.backfile (chr), coverge.references.current (chr),
## coverge.references.backfile (chr), coverge.update.policies.backfile
## (chr), coverge.resource.links.current (chr),
## coverge.update.policies.current (chr), coverge.award.numbers.current
## (chr), coverge.orcids.current (chr), coverge.orcids.backfile (chr),
## coverge.award.numbers.backfile (chr), coverge.licenses.current (chr),
## coverge.licenses.backfile (chr), flags.deposits.award.numbers.backfile
## (chr), flags.deposits (chr), flags.deposits.licenses.backfile (chr),
## flags.deposits.resource.links.backfile (chr),
## flags.deposits.licenses.current (chr), flags.deposits.orcids.current
## (chr), flags.deposits.funders.backfile (chr),
## flags.deposits.references.current (chr), flags.deposits.orcids.backfile
## (chr), flags.deposits.references.backfile (chr),
## flags.deposits.resource.links.current (chr),
## flags.deposits.award.numbers.current (chr),
## flags.deposits.update.policies.backfile (chr),
## flags.deposits.funders.current (chr),
## flags.deposits.update.policies.current (chr), flags.deposits.articles
## (chr), names (chr), tokens (chr)
##
## $facets
## NULL
cr_r() uses the function cr_works() internally.
cr_r()
## [1] "10.1016/j.bbrc.2006.06.185" "10.1017/s0007087406008739"
## [3] "10.1016/s0140-6736(53)91360-9" "10.1007/978-3-642-36897-4_4"
## [5] "10.1056/nejmoa0908806" "10.3139/9783446432758"
## [7] "10.1016/0010-7824(94)90111-2" "10.1109/aps.1991.175215"
## [9] "10.1145/170791.170817" "10.1163/9780080548692"
You can pass in the number of DOIs you want back (default is 10)
cr_r(2)
## [1] "10.3989/ic.1995.v47.i437.1072" "10.1016/j.preteyeres.2015.01.004"
Search by author
cr_search(query = c("renear", "palmer"), rows = 3, sort = "year")[1:2,-6]
## doi score normalizedScore
## 1 http://dx.doi.org/10.1136/flgastro-2014-100540 0.4935921 15
## 2 http://dx.doi.org/10.1097/aln.0000000000000554 0.4935921 15
## title
## 1 New and emerging endoscopic haemostasis techniques
## 2 Tilting at Aortocaval Compression
## fullCitation
## 1 R. Palmer, B. Braden, 2015, 'New and emerging endoscopic haemostasis techniques', <i>Frontline Gastroenterology</i>
## 2 Craig M. Palmer, 2015, 'Tilting at Aortocaval Compression', <i>Anesthesiology</i>, vol. 122, no. 2, pp. 231-232
## year
## 1 2015
## 2 2015
Search by DOI
cr_search(doi = "10.1890/10-0340.1")[,-6]
## doi score normalizedScore
## 1 http://dx.doi.org/10.1890/10-0340.1 18.59906 100
## title
## 1 The arcsine is asinine: the analysis of proportions in ecology
## fullCitation
## 1 David I. Warton, Francis K. C. Hui, 2011, 'The arcsine is asinine: the analysis of proportions in ecology', <i>Ecology</i>, vol. 92, no. 1, pp. 3-10
## year
## 1 2011
Free search
queries <- c("Piwowar sharing data PLOS one", "Priem Scientometrics 2.0 social web",
"William Gunn A Crosstalk Between Myeloma Cells",
"karthik ram Metapopulation dynamics override local limits")
cr_search_free(queries)[,-4]
## text match
## 1 Piwowar sharing data PLOS one TRUE
## 2 Priem Scientometrics 2.0 social web TRUE
## 3 William Gunn A Crosstalk Between Myeloma Cells TRUE
## 4 karthik ram Metapopulation dynamics override local limits TRUE
## doi score
## 1 http://dx.doi.org/10.1371/journal.pone.0000308 3.353533
## 2 http://dx.doi.org/10.5210/fm.v15i7.2874 3.747504
## 3 http://dx.doi.org/10.1634/stemcells.2005-0220 2.833707
## 4 http://dx.doi.org/10.1890/08-0228.1 3.966986