Additional versions of R on the Dartmouth Research Computing systems are installed using the modules system. if we upgrade 4.1.2 to 4.1.3, it will use the same packages, but 4.0 and 4.1 have distinct sets of packages, and if you switch between them, you will need to reinstall the packages you need. Versions differing at the third level are considered compatible for the purposes of installed packages, e.g. You can check what version you are currently set up to use with the command R -version
The default version of R on RHEL7/Centos7 systems is 3.6.0. conda, may also be used, and R can be bundled with sets of packages in containers. This article describes the 'native' package installation method for R. All packages are downloaded as source code and compiled and linked and tested by the installer, which can take considerable time and produces a lot of diagnostic output. Installing R packages on Linux servers requires patience and sometimes persistence.
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