R

R is a "free software environment for statistical computing and graphics."

Installation

R comes with a very large number of packages, many of which available through nixpkgs. In particular, any package available through CRAN.

Similarly to Python, your packages must be declared when installing R. Commands such as install.packages("ggplot2") will not succeed.

To install R will a collection of packages, a new nix package must be defined, for instance

with pkgs;
let
  R-with-my-packages = rWrapper.override{ packages = with rPackages; [ ggplot2 dplyr xts ]; };
in ...

and then you can put R-with-my-packages into your environment.systemPackages for a system-wide installation.