R is a programming language and free software environment used for multiple purposes such as statistical analysis, data manipulation, predicting and forecasting, etc. With R, well-designed publication plots can be produced. R runs on platforms like UNIX, LINX, Windows, and MacOS. The code for R is written in C, Fortran and R. R is an interpreted language that can implement a wide variety of statistical and graphical techniques. R makes it easier for the users to follow the algorithm choices as most of the functions are written in R itself.
Due to it interesting benefits, R is used by several companies such as Google, Facebook, Ford, etc. R is used by the Human Rights Data Analysis Group to gauge the impact of war. R is also used by Ford to revamp the designs of its vehicles. R has a promising future because of its open source nature. According to Gartner, the popularity of R will definitely grow further. So, it is the right time to move forward in your career with R. This article covers important R programming interview questions that you can take ideas from if you’re taking an interview.