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://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] 6
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 100006445 United States
#> 4 100003187 United States
#> 5 501100001809 China
#> 6 501100000930 Australia
#> 7 100008367 Denmark
#> 8 100000001 United States
#> 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 229074 NA 0 1
#>
#> $data
#> Source: local data frame [1 x 25]
#>
#> issued score prefix
#> 1 2015-02 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), page (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 7 elsevier 0 20
#>
#> $data
#> Source: local data frame [7 x 2]
#>
#> URL
#> 1 http://creativecommons.org/licenses/by-nc-nd/3.0/
#> 2 http://creativecommons.org/licenses/by-nc-nd/4.0/
#> 3 http://creativecommons.org/licenses/by/3.0/
#> 4 http://www.elsevier.com/open-access/userlicense/1.0/
#> 5 http://www.elsevier.com/tdm/userlicense/1.0/
#> 6 © 2007 Elsevier Masson SAS. All rights reserved. The patient figure in Figu
#> 7 © 2012, Elsevier Inc., All Rights Reserved. Figure 8, part (B) (images of H
#> Variables not shown: work.count (int)
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 17 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] "10.1109/vetecs.2006.1683416" "10.1163/_eifo_dum_dcl189"
#> [3] "10.1353/lan.1990.0039" "10.5860/choice.37-2350"
#> [5] "10.1007/bf02246477" "10.1049/ip-a-1.1982.0040"
#> [7] "10.1021/bi00398a067" "10.2172/656490"
#> [9] "10.1007/bf00431474" "10.1016/0021-9614(83)90029-0"
You can pass in the number of DOIs you want back (default is 10)
cr_r(2)
#> [1] "10.1097/00007890-200607152-01210" "10.2106/jbjs.ss.m.00201"
Search by author
cr_search(query = c("renear", "palmer"), rows = 3, sort = "year")[1:2,-6]
#> doi score
#> 1 http://dx.doi.org/10.13110/merrpalmquar1982.61.1.fm 0.7023144
#> 2 http://dx.doi.org/10.13110/merrpalmquar1982.61.2.fm 0.7023144
#> normalizedScore title
#> 1 21 Front Matter
#> 2 21 Front Matter
#> fullCitation
#> 1 2015, 'Front Matter', <i>Merrill-Palmer Quarterly</i>, vol. 61, no. 1, pp. i-viii
#> 2 2015, 'Front Matter', <i>Merrill-Palmer Quarterly</i>, vol. 61, no. 2, pp. i-ii
#> 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 18.66866 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 3.348134
#> 2 http://dx.doi.org/10.5210/fm.v15i7.2874 3.593655
#> 3 http://dx.doi.org/10.1634/stemcells.2005-0220 2.830429
#> 4 http://dx.doi.org/10.1890/08-0228.1 3.965847