On Fri, Jun 10, 2016 at 8:27 AM, Marcelo Perlin <marceloper...@gmail.com> wrote: > I don't know Hadley. But you can see evidence of "something" systematically > installing the packages in the log data. From my two CRAN packages I noticed > a high correlation in the number of downloads. > > Try the following script, which will pick 5 random packages from CRAN and > calculate the correlation matrix between their differenced number of > downloads. To avoid spurious correlations, I removed the weekends since we > can expect some seasonality and also the zero entries. Its crude, I know, > but it does shows some positive associations between the number of > installations of the packages.
Which is not at all surprising: * there are very strong seasonal patterns * there are big jumps after releases of new versions of R * some people like to have all packages installed locally This is an intrinsic problem with download data. There's no way to tell if a downloader is really using your package or not. Hadley -- http://hadley.nz ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
