R Dataset / Package Ecdat / CRANpackages
Growth of CRAN
Data casually collected on the number of packages on the Comprehensive R Archive Network (CRAN) at different dates.
NOTE: This could change in the future. See Details below.
an ordered factor of the R version number primarily in use at the time. This was taken from archives of the major releases at https://svn.r-project.org/R/branches/R-1-3-patches/tests/internet.Rout.save, ... https://svn.r-project.org/R/branches/R-3-1-branch/tests/internet.Rout.save
an object of class
Dategiving the date on which the count of the number of CRAN packages was determined.
an integer number of packages on the CRAN mirror checked on the indicated
A factor giving the source (person) who collected the data.
This seems to provide the most widely available source for data on the growth of CRAN, manually recorded by John Fox and Spencer Graves. For a discussion of these and related data, see Fox (2009).
For more detail, see the
CRAN packages data on
Github maintained by Hadley Wickham. This contains the description
file of every package uploaded to CRAN prior to the date of Hadley's
most recent update. The current maintainer of the
Ecfun packages would consider contributions along the
1. It might be nice to have a more complete dataset or datasets
showing CRAN growth. This might include code fitting multiple
models and predicting future growth with error bounds computed
using Bayesian Model Averaging. These model fits might make an
interesting addition to the examples in this help file. With a
little more effort, it might make an interesting note for
R Journal. Functions written to fit those models might
be added to the
2. It might be nice to have a function in
data from Github and convert it to a format suitable for
updating this dataset.
The current maintainer for
(Spencer Graves) might be willing to accept code and
documentation for this but is not ready to do it himself at
the present time.
John Fox, "Aspects of the Social Organization and Trajectory of the R Project", R Journal, 1(2), Dec. 2009, 5-13. https://journal.r-project.org/archive/2009-2/RJournal_2009-2_Fox.pdf, accessed 2014-04-13.
plot(Packages~Date, CRANpackages, log='y') # almost exponential growth
Dataset imported from https://www.r-project.org.
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