When installing R packages (say mcmcpack
in this example) under Ubuntu I have the choice between the following two methods of installation:
# Let the distribution's packaging system take care of installation/upgrades
apt-get install r-cran-mcmcpack
# Let R take care of installation/upgrades
install.packages("mcmcpack")
Questions:
install.packages("mcmcpack")
and later on apt-get install r-cran-mcmcpack
- should I expect trouble?apt-get install r-cran-mcmcpack
and later on install.packages("mcmcpack")
- should I expect trouble?It's not as easy as it seems.
apt-get update
is good if and when
packages exist -- but there are only around 150 or so r-cran-*
packages out of a pool of 2100+ packages on CRAN, so rather sparse coverage
packages are maintained, bug free and current
you are happy enough with the bi-annual releases by Ubuntu
install.packages()
and later update.packages()
is good if and when
you know what it takes to have built-time dependencies (besides r-base-dev
) installed
you don't mind running update.packages()
by hand as well as the apt-get
updates.
On my Ubuntu machine at work, I go with the second solution. But because the first one is better if you have enough coverage, we have built cran2deb which provides 2050+ binary deb packages for amd64 and i386 --- but only for Debian testing. That is what I use at home.
As for last question of whether you 'should you expect trouble': No, because R_LIBS_SITE
is set in /etc/R/Renvironment
to be
# edd Apr 2003 Allow local install in /usr/local, also add a directory for
# Debian packaged CRAN packages, and finally the default dir
# edd Jul 2007 Now use R_LIBS_SITE, not R_LIBS
R_LIBS_SITE=${R_LIBS_SITE-'/usr/local/lib/R/site-library:\
/usr/lib/R/site-library:/usr/lib/R/library'}
which means that your packages go into /usr/local/lib/R/site-library
whereas those managed by apt
go into /usr/lib/R/site-library
and (in the case of base packages) /usr/lib/R/library
.
Hope that clarifies matters. The r-sig-debian mailing list is a more informed place for questions like this.