Zotero is a free tool for collecting, organizing, and citing research developed by the Corporation for Digital Scholarship. Zoterro (with double “r”) is a simple R client to the Zotero web API (ver. 3) which can be used to access the data of public groups, your personal account, or groups you are a member of.
The client implements convenience functions for fetching data from the
most frequently needed API endpoints. Endpoints for which no convenience
wrapper is offered (yet) can be accessed using the low-level interface
provided by zotero_api(). See Zotero API
documentation for
what endpoints are available.
Install the development version from GitHub via:
# install.packages("remotes")
remotes::install_github("mbojan/zoterro")-
Fetch a complete collection hierarchy as a data frame. The function defaults to the configured user ID determined by
zotero_usr(), but here we fetch the collections associated with a public Zotero group “Computational Social Science” that has the ID269768:collections(user = zotero_group_id(269768)) #> # A tibble: 20 × 3 #> key name parent_key #> <chr> <chr> <chr> #> 1 37L2NKQS Audit Culture <NA> #> 2 FV8VSU96 Supply Chain <NA> #> 3 7YP6NY6Y Informatics <NA> #> 4 JSUQ2CAP Online political information <NA> #> 5 TQ2T8I4S Anticipatory Infrastructure <NA> #> 6 VZKMHAKU Prosopography & History <NA> #> 7 95U78BNI Behavior change <NA> #> 8 UBT2C48F Online community <NA> #> 9 FWIPZMZB Organizational ecology <NA> #> 10 PJHH85S9 Genealogy <NA> #> 11 C6FFPZNS Bots & Field Experiments <NA> #> 12 HKKTBDTF Social Computing <NA> #> 13 I8F6BFTC Ethics <NA> #> 14 F2HZII59 Moral Panics and Risk Society <NA> #> 15 CRNZIRNE Policy experiments <NA> #> 16 IWPTPITN Foundations <NA> #> 17 FZ74NFEN Social Network Analysis <NA> #> 18 EH5ZX8SB Critiques <NA> #> 19 FC6AK8VG Abduction/Retroduction <NA> #> 20 JAXD7H8S Paradigm wars <NA>
Collections are identifed with unique
keys. If any of the collections would be nested within some other collection, the key of the parent collection would appear in the columnparent. -
Fetch all items from a collection. By default the data is returned as a tibble:
items(collection_key = "PJHH85S9", user = zotero_group_id(269768)) #> # A tibble: 52 × 40 #> key version parentItem itemType linkMode title accessDate url note contentType charset filename #> <chr> <int> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr> <chr> #> 1 4DMJB285 2469 ZAIHXBUJ attachment importe… Snap… "2017-10-… "htt… "" text/html "utf-8" abstrac… #> 2 ZAIHXBUJ 2465 <NA> journalAr… <NA> Usin… "" "htt… <NA> <NA> <NA> <NA> #> 3 II488T8Q 812 ZAIHXBUJ attachment importe… Snap… "2017-11-… "htt… "" text/html "utf-8" login.h… #> 4 93T74CKJ 788 QT3DFJP3 attachment importe… choi… "" "" "" applicatio… "" choi200… #> 5 X24M4ADA 788 QT3DFJP3 attachment importe… Snap… "2017-10-… "htt… "" text/html "utf-8" 636.html #> 6 T2GB9HBV 787 QT3DFJP3 attachment linked_… PubM… "2017-10-… "htt… "" text/html "" <NA> #> 7 QT3DFJP3 787 <NA> journalAr… <NA> The … "2017-10-… "htt… <NA> <NA> <NA> <NA> #> 8 MWJTRJN2 786 ZW56BMF9 attachment importe… natu… "" "" "" applicatio… "" nature0… #> 9 WSF3JX8A 786 ZW56BMF9 attachment importe… Snap… "2017-10-… "htt… "" text/html "utf-8" login.h… #> 10 XBA75WN3 784 EA5JE6JX attachment importe… Snap… "2017-10-… "htt… "" text/html "utf-8" abstrac… #> # … with 42 more rows, and 28 more variables: md5 <chr>, mtime <dbl>, dateAdded <chr>, dateModified <chr>, #> # creators <list>, abstractNote <chr>, publicationTitle <chr>, volume <chr>, issue <chr>, pages <chr>, #> # date <chr>, series <chr>, seriesTitle <chr>, seriesText <chr>, journalAbbreviation <chr>, #> # language <chr>, DOI <chr>, ISSN <chr>, shortTitle <chr>, archive <chr>, archiveLocation <chr>, #> # libraryCatalog <chr>, callNumber <chr>, rights <chr>, extra <chr>, collections <list>, #> # relations <named list>, tags <list>
The output format can be changed to e.g. BibTeX:
items_bibtex <- items( collection_key = "PJHH85S9", as_tibble = FALSE, user = zotero_group_id(269768), query = list(format = "bibtex") ) # This will print all the entries... # cat(rawToChar(items_bibtex)) # ... but to save space we show just the first three: entries <- head(strsplit( rawToChar(items_bibtex), "\n\n" )[[1]], 3 ) cat(entries, sep = "\n\n") #> #> @article{ling_using_2005, #> title = {Using {Social} {Psychology} to {Motivate} {Contributions} to {Online} {Communities}}, #> volume = {10}, #> issn = {1083-6101}, #> url = {http://onlinelibrary.wiley.com.colorado.idm.oclc.org/doi/10.1111/j.1083-6101.2005.tb00273.x/abstract}, #> doi = {10.1111/j.1083-6101.2005.tb00273.x}, #> abstract = {Under-contribution is a problem for many online communities. Social psychology theories of social loafing and goal-setting can lead to mid-level design goals to address this problem. We tested design principles derived from these theories in four field experiments involving members of an online movie recommender community. In each of the experiments participated were given different explanations for the value of their contributions. As predicted by theory, individuals contributed when they were reminded of their uniqueness and when they were given specific and challenging goals. However, other predictions were disconfirmed. For example, in one experiment, participants given group goals contributed more than those given individual goals. The article ends with suggestions and challenges for mining design implications from social science theories.}, #> language = {en}, #> number = {4}, #> journal = {Journal of Computer-Mediated Communication}, #> author = {Ling, Kimberly and Beenen, Gerard and Ludford, Pamela and Wang, Xiaoqing and Chang, Klarissa and Li, Xin and Cosley, Dan and Frankowski, Dan and Terveen, Loren and Rashid, Al Mamunur and Resnick, Paul and Kraut, Robert}, #> month = jul, #> year = {2005}, #> note = {Citation Key Alias: LingUsingSocialPsychology2005a}, #> pages = {00--00}, #> } #> #> @article{choi_coevolution_2007, #> title = {The {Coevolution} of {Parochial} {Altruism} and {War}}, #> volume = {318}, #> copyright = {American Association for the Advancement of Science}, #> issn = {0036-8075, 1095-9203}, #> url = {http://science.sciencemag.org/content/318/5850/636}, #> doi = {10.1126/science.1144237}, #> abstract = {Altruism—benefiting fellow group members at a cost to oneself—and parochialism—hostility toward individuals not of one's own ethnic, racial, or other group—are common human behaviors. The intersection of the two—which we term “parochial altruism”—is puzzling from an evolutionary perspective because altruistic or parochial behavior reduces one's payoffs by comparison to what one would gain by eschewing these behaviors. But parochial altruism could have evolved if parochialism promoted intergroup hostilities and the combination of altruism and parochialism contributed to success in these conflicts. Our game-theoretic analysis and agent-based simulations show that under conditions likely to have been experienced by late Pleistocene and early Holocene humans, neither parochialism nor altruism would have been viable singly, but by promoting group conflict, they could have evolved jointly. #> Simulations show that altruism and parochialism may have coevolved, despite the negative costs of each, by yielding combined benefits through success in intergroup conflict. #> Simulations show that altruism and parochialism may have coevolved, despite the negative costs of each, by yielding combined benefits through success in intergroup conflict.}, #> language = {en}, #> number = {5850}, #> urldate = {2017-10-24}, #> journal = {Science}, #> author = {Choi, Jung-Kyoo and Bowles, Samuel}, #> month = oct, #> year = {2007}, #> pmid = {17962562}, #> pages = {636--640}, #> } #> #> @article{bourke_colony_1999, #> title = {Colony size, social complexity and reproductive conflict in social insects}, #> volume = {12}, #> issn = {1420-9101}, #> url = {http://onlinelibrary.wiley.com.colorado.idm.oclc.org/doi/10.1046/j.1420-9101.1999.00028.x/abstract}, #> doi = {10.1046/j.1420-9101.1999.00028.x}, #> abstract = {The broad limits of mature colony size in social insect species are likely to be set by ecological factors. However, any change in colony size has a number of important social consequences. The most fundamental is a change in the expected reproductive potential of workers. If colony size rises, workers experience a fall in their chances of becoming replacement reproductives and, it is shown, increasing selection for mutual inhibition of one another's reproduction (worker policing). As workers’ reproductive potential falls, the degree of dimorphism between reproductive and worker castes (morphological skew) can rise. This helps explain why small societies have low morphological skew and tend to be simple in organization, whereas large societies have high morphological skew and tend to be complex. The social consequences of change in colony size may also alter colony size itself in a process of positive feedback. For these reasons, small societies should be characterized by intense, direct conflict over reproduction and caste determination. By contrast, conflict in large societies should predominantly be over brood composition, and members of these societies should be relatively compliant to manipulation of their caste. Colony size therefore deserves fuller recognition as a key determinant, along with kin structure, of social complexity, the reproductive potential of helpers, the degree of caste differentiation, and the nature of within-group conflict.}, #> language = {en}, #> number = {2}, #> journal = {Journal of Evolutionary Biology}, #> author = {{Bourke}}, #> month = mar, #> year = {1999}, #> keywords = {complexity, reproductive conflict, social evolution, social insect, worker policing}, #> pages = {245--257}, #> }
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Fetch all items from a collection and save to BibTeX file
references.bib. Basically a conveniece wrapper for the example above.write_bib( collection_key = "PJHH85S9", path = "references.bib", user = zotero_group_id(269768) )
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zotero_api()is a low-level function. It will make multiple requests if the results do not fit in a single response. The following will fetch all items in the “My Publications” collection of the default user:zotero_api(path = "publications/items")
Please note that the zoterro project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.