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Added some logic to handle installation of packages from the popular Bioconductor repository.
The current approach first attempts installation using
install.packages
, and then if that fails, checks for the presence of Bioconductor on the user's machine and then attempts to install the package using the Bioconductor biocLite() method.An alternative approach would be to require to explicit enabling of bioconductor repo use, e.g.
p_load(xxx, use_bioconductor=TRUE)
. This could default toFALSE
, but be controllable via an option in the user's .Rprofile.