Considering the growth, job possibilities, and interest among students, Harvard University is offering free courses on Data Science. Check the list of 9 free courses here.

This online data science specialization is designed for anyone interested in learning how to program in R. You will learn the basics of R, including imputing data, performing basic analysis, graphing, ...

Covering Python, Java, R, C, and even Scratch for school educators, these courses help students, interns, and career switchers build real-world programming skills without cost.

Interest in the open source R language keeps rising, making it the candidate for TIOBE's programming language of the year.