There are numerous free resources available online helpful for learning R. I’ll make some recommendations on this page, as well as use this page to list some useful R and R Studio tips and tricks.
- Googling R questions can often turn up an example of someone solving your issue or a closely related one. For example, you can copy error messages and google them, or ask “how to do X in R”.
Stackoverflow is great, Google will often take you there because someone has already asked your question, and someone else has answered, usually many people have answered your question many ways.
- I wrote a Statistics Textbook and Lab manual in R for undergraduate psych statistics that has a variety of statistics and R content
- Danielle Navarro wrote a free Psych Stats textbook using R, it’s worth checking out (some of our textbook are based on Danielle’s)
- Danielle Navarro recently made this website for introducing R, it’s great, check it out (also made using this R markdown process): http://compcogscisydney.org/psyr/
- Check out my slightly older programming book that also introduces R https://crumplab.github.io/programmingforpsych/
- Another solid and accessible resource for psyc stats using R https://ademos.people.uic.edu/index.html.
https://cran.r-project.org/doc/contrib/Short-refcard.pdf This link takes you to a reference card, that shows a big long list of intrinsic r functions.
- A really great and really long list of resources for R! https://paulvanderlaken.com/2017/08/10/r-resources-cheatsheets-tutorials-books/
- There’s a bunch of R markdown tricks right here https://holtzy.github.io/Pimp-my-rmd/.