If you are interested in learning R, I can recommend this resource: Quantitative Politics with R. It is a guide in development (together with Zoltán Fazekas).
In the current version, you will find an introduction to the basics of R (e.g. how to import and manipulate data), how to collect political data (primary and secondary data), how to visualise data and a brief introduction to OLS regression.
The material follows – for the most part – tools within the tidyverse (such as the dplyr and ggplot2 packages). In future versions you will find additional techniques to analyse data, more on scoped verbs, functional programming tools etc. Any suggestions, feedback and comments are more than welcome.
(This is old news for people following me on Twitter.)