Generate BibTeX bibliography databases for R packages

This function uses citation and toBibtex to create bib entries for R packages and write them in a file. Only the auto-generated citations are included for a package. This function can facilitate the auto-generation of bibliography databases for R packages, and it is easy to regenerate all the citations after updating R packages.

write_bib(x = .packages(), file = "", tweak = TRUE)
package names (packages which are not installed are ignored)
the (.bib) file to write (by default writes to the R console; ignored if it is NULL)
whether to fix some known problems in the citations, especially non-standard format of authors

The citation is forced to be generated from the DESCRIPTION file of the package, the keyword R-pkgname is used for the bib item where pkgname is the name of the package.


  • a list containing the citations (also written to the file as a side effect)


Some packages on CRAN do not have standard bib entries, which was once reported by Michael Friendly at https://stat.ethz.ch/pipermail/r-devel/2010-November/058977.html. I find this a real pain, and there are no easy solutions except contacting package authors to modify their DESCRIPTION files. Anyway, the argument tweak has provided ugly hacks to deal with packages which are known to be non-standard in terms of the format of citations; tweak = TRUE is by no means intended to hide or modify the original citation information. It is just due to the loose requirements on package authors for the DESCRIPTION file. On one hand, I apologize if it really mangles the information about certain packages; on the other, I strongly recommend package authors to consider the Authors@R field (see the manual Writing R Extensions) to make it easier for other people to cite R packages. See knitr:::.tweak.bib for details of tweaks. Also note this is subject to future changes since R packages are being updated.

  • write_bib
write_bib(c("RGtk2", "gWidgets"), file = "R-GUI-pkgs.bib")
write_bib(c("animation", "rgl", "knitr", "ggplot2"))
write_bib(c("base", "parallel", "MASS"))  # base and parallel are identical
write_bib(c("rpart", "survival"))
write_bib(c("rpart", "survival"), tweak = FALSE)  # original version

# what tweak=TRUE does
Documentation reproduced from package knitr, version 0.9, License: GPL

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