home.md

@@ -1662,6 +1662,73 @@ You can load R with one of the modules:
 * statistical/R/3.6.2/gcc.8.3.1
 * statistical/R/4.0.2/gcc.8.3.1
 
+#### R package management
+
+Local R packages are installed in:
+* $HOME/R/x86_64-pc-linux-gnu-library/version
+
+Global R packages are installed in:
+* /share/software/statistical/R/R-version/lib64/R/library/
+
+Getting list of installed R packages and information:
+* installed.packages()
+* packageDescription("package")
+* help(package = "package")
+* packageVersion("package")
+
+example:
+* packageDescription("stats")
+* help(package = "stats")
+* packageVersion("stats")
+
+##### Installing R packages
+
+You can find a list of R packages here:
+* https://cran.r-project.org
+* https://cran.r-project.org/web/packages/available_packages_by_name.html
+
+Get a list of mirrors:
+* getCRANmirrors()
+
+Choose a mirroe:
+* chooseCRANmirror()
+
+For example, choose:  53: Netherlands [https]
+
+Install a R package:
+* install.packages("package")
+
+Install a R package with all the dependencies:
+* install.packages("dplyr", dependencies = TRUE)
+
+Install a R package with a mirror url link:
+* install.packages("vioplot", repo = "https://lib.ugent.be/CRAN/")
+
+Install 2 or more R packages:
+install.packages(c("vioplot", "MASS"))
+
+##### Removing R packages
+
+Remove R packages with:
+
+* remove.packages("package")
+* remove.packages("vioplot")
+
+You can only remove R packages which are installed in your own home folder.
+You can not remove globally installed R packages.
+
+##### Updating R packages
+
+You can check what packages need an update with a call to the function:
+
+* old.packages()
+
+Updating packages (local):
+
+* update.packages()
+
+If a global R package needs to be updated, contact the Linux team.
+
 #### Running R interactively
 
 You can start to run R interactively, just as an exercise and test.