Creation and use of R Repositories via helper functions to insert packages into a repository, and to add repository information to the current R session. Two primary types of repositories are support: gh-pages at GitHub, as well as local repositories on either the same machine or a local network. Drat is a recursive acronym: Drat R Archive Template.
Drat R Archive Template
The R package ecosystem is one of the cornerstones of the success seen by R. As of early 2016, almost 8000 packages are on CRAN, with about one thousand more at BioConductor and probably another hundred at OmegaHat.
Support for multiple repositories is built deeply into R; mostly via the
function (along with several others from the
utils package) can be used with
ease for these three default repositories as well as many others. But it
seemed that support for simple creation and use of local repositories was
Drat tries to help here and supports two principal modes:
You can install the package from CRAN via the
install.packages("drat"). Alternatively, you can also do
to install directly from the drat repository.
See the vignettes
for the FAQ, two principal uses cases, basic motivation and an overview / introduction. The package documentation provides more details. The drat package page has a longer tutorial, and the blog section on drat has even more.
A few drat repositories are starting to appear (besides this one). An incomplete list (looking at the direct forks as well as GitHub search):
Dirk Eddelbuettel, with contributions by Carl Boettiger, Sebastian Gibb, Colin Gillespie, Matt Jones, Thomas Leeper, Steven Pav and Jan Schulz.
GPL (>= 2)