How to cite the R package plyr

plyr is a popular R package that is available at https://cran.r-project.org/web/packages/plyr/index.html. By citing R packages in your paper you lay the grounds for others to be able to reproduce your analysis and secondly you are acknowledging the time and work people have spent creating the package.

APA citation

Formatted according to the APA Publication Manual 7th edition. Simply copy it to the References page as is.

APA

The minimal requirement is to cite the R package in text along with the version number. Additionally, you can include the reference list entry the authors of the plyr package have suggested.

Example of an in-text citation

Analysis of the data was done using the plyr package (v1.8.6; Wickham, 2011).

Reference list entry

Wickham, H. (2011). The Split-Apply-Combine Strategy for Data Analysis. In Journal of Statistical Software (Vol. 40, Issue 1, pp. 1–29). http://www.jstatsoft.org/v40/i01/

Vancouver citation

Formatted according to Vancouver style. Simply copy it to the references section as is.

Vancouver

Example of an in-text citation

Analysis of the data was done using the plyr package v1.8.6 (1).

Reference list entry

1.
Wickham H. The Split-Apply-Combine Strategy for Data Analysis [Internet]. Vol. 40, Journal of Statistical Software. 2011. p. 1–29. Available from: http://www.jstatsoft.org/v40/i01/

BibTeX

Reference entry in BibTeX format. Simply copy it to your favorite citation manager.

BibTeX
@MISC{Wickham2011-ua,
  title   = "The {Split-Apply-Combine} Strategy for Data Analysis",
  author  = "Wickham, Hadley",
  journal = "Journal of Statistical Software",
  volume  =  40,
  number  =  1,
  pages   = "1--29",
  year    =  2011,
  url     = "http://www.jstatsoft.org/v40/i01/"
}

RIS

Reference entry in RIS format. Simply copy it to your favorite citation manager.

RIS
TY  - MISC
AU  - Wickham, Hadley
TI  - The Split-Apply-Combine Strategy for Data Analysis
T2  - Journal of Statistical Software
VL  - 40
IS  - 1
SP  - 1-29
PY  - 2011
DA  - 2011
UR  - http://www.jstatsoft.org/v40/i01/
ER  - 

Other citation styles (ACS, ACM, IEEE, ...)

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plyr R package release history

VersionRelease date
1.8.52019-12-10
1.8.42016-06-08
1.8.32015-06-12
1.8.22015-04-21
1.8.12014-02-26
1.82012-12-06
1.7.12012-01-08
1.72011-12-30
1.62011-07-29
1.5.22011-04-24
1.5.12011-04-13
1.52011-04-10
1.4.12011-04-05
1.42011-01-04
1.2.12010-09-11
1.22010-09-10
1.12010-07-24
1.0.32010-07-07
1.0.12010-07-06
1.0.22010-07-06
1.02010-07-05
0.1.92009-06-23
0.1.82009-04-21
0.1.62009-04-15
0.1.72009-04-15
0.1.52009-02-24
0.1.42008-12-13
0.1.32008-11-19
0.1.22008-11-18
0.1.12008-10-08
0.12008-09-30