R

Definition

R is a programming language for statistical computing and data visualization. It has been adopted in the fields of data mining, bioinformatics and data analysis.

R on Euler

R version	Module command
4.3.2	module load stack/2024-06 r/4.3.2
4.4.0	module load stack/2024-06 r/4.4.0

Package installation

To install new packages, run

install.packages("<package_name>")

which will dispay a warning and will ask "Would you like to use a personal library instead? (y/n)", which you want. This installs packages into "$HOME/R".
To display installed packages, run

installed.packages()

Interactive session

Execute "module load stack/2024-06 r/4.3.2" to make R available in your command line. Then "R" launches an interactive session. You should see

>

and you can try a simple command

print("Hello, World!")

which should print

[1] "Hello, World!"

Example program

Create a file "hello.r", containing

print("Hello, World!")

Bring R and Rscript to your command line with "module load stack/2024-06 r/4.4.0".
Run the program via

Rscript hello.r

and the program should print

[1] "Hello, World!"

to your terminal.

Compute-Intensive jobs

Compute-Intensive jobs must be submitted to the batch system (Slurm).

sbatch [sbatch options] "R --vanilla --no-echo < input_file.R > output_file"

They can be parallelized with a variety of packages. Here's a good overview on the topic: https://cran.r-project.org/web/views/HighPerformanceComputing.html