R Programming language is an open-source and free software environment that is specifically used for statistical computing and graphical data representation.
R software is specially designed for data miners for developing statistical applications, and statisticians for performing data analysis.
In this context, we shall look into how to install the R programming language on Linux Ubuntu distribution.
How to install R on Ubuntu 20.04 ?
To begin, Ensure that You should have root or to run sudo command privileges.
The R packages, available in the default Ubuntu repository are outdated.
Therefore, it is the best alternative to install R from the CRAN repository.
So, implement the following steps in order to install R on Ubuntu 20.04 system by using the CRAN repository.
1. Install Required Dependencies
Launch the terminal by pressing 'Ctrl + Alt + t' or open the terminal by clicking on the 'Activities' and type terminal in the search bar.
First, install the all required packages that are necessary for adding a new CRAN repository.
Execute the following command to install all dependencies:
$ sudo apt install dirmngr gnupg apt-transport-https ca-certificates software-properties-common
2. Add Cran Repository
Add the Cran repository by running the following commands in the terminal:
$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
$ sudo add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu focal-cran40/'
3. Install R
Execute the below-given command to install R on your Ubuntu 20.04 system:
$ sudo apt install r-base
When you will run the above command the R packages will be installed on your system.
4. Check R version
Once the R is installed, type the following command to check the installed version of R programming software:
$ R --version
This will show the version of R installed on your system.
5. Install essential build packages
R has a variety of packages. Therefore, before starting the compilation process install some essential packages that are required for compiling R programs.
The following command can be used to install the required build packages:
$ sudo apt install build-essential
6. Access R Console
First, type the following command to access the R shell environment where you can install the required R packages:
$ sudo -i R
Now, you can install all R packages on your system.
Example of using R on Ubuntu:
In this example, install the 'txtplot' package that plots the graph of given values.
Install the R package 'txtplot' by typing the following terminal command:
Now, load the 'txtplot' library by running the following command:
Here, we have explained the basic overview of the graph plot between the car acceleration and speed:
> txtplot(cars[,1], cars[,2], xlab = “acceleration”, ylab = “speed”)
The above command will display a graph on the terminal.
To exit from the R console, type the following command on the terminal:
A prompt will appear for saving the above workspace image.
Press 'y' if you want to save the workspace.