A straightforward introduction to the R statistical and programming language, emphasizing its power in predictive analytics and machine learning.
Introduction R is a powerful language used widely for data analysis and statistical computing. It was developed in early 90s. Since then, endless efforts have been made to improve R’s user interface. The journey of R language from a rudimentary text editor to interactive R Studio and more recently Jupyter Notebooks has engaged many data science communities
Source: A Complete Tutorial to learn Data Science in R from Scratch