Resources
Your first stop for any help related to computing with data should be the book: Getting used to R, RStudio, and R Markdown.
R
- Datacamp: Intro to R Course: online platform for learning all dimensions of R
R Markdown
- R Markdown debugging sheet: these steps solve about 85% of problems.
Data Science
- The Elements of Data Analytic Style by Leek
- R for Data Science by Grolemund and Wickham