R Resources

We use R for most statistical analyses. To help ourselves and others, here is a list of the R resources we find most useful.

Cheat Sheets

Dan's R Cheat Sheet: a 2-page summary of the functions I use the most.

Cheatsheets by RStudio: info-packed 2-page guides for graphing, data wrangling, markdown, etc.

Markdown Cheatsheet: a quick reference for markdown syntax.

Quick-R: an excellent searchable reference guide

Cookbook for R: cookbook-style how-to wiki, particularly useful for experimental psychology

Matlab/R Reference guide: A handy reference for both R and Matlab (our other main analytical tool)

Hadley Wickham's Style Guide

ggplot2: documentation website for our main graphics tool

The R graph gallery: many different graph examples with snippets of code for generating them.

Books

Data Visualization: A practical introduction by Kieran Healy: uses ggplot2 and includes code and data sets.
Fundamentals of Data Visualization by Claus O. Wilke: focuses on principles for creating accurate, effective, and attractive visualizations; does not include code

Primers that cover the most important aspects of using R and programming with R (by the RStudio team)
For absolute beginners who want a gentle (or silly) introduction
- R for cats: a basic introduction to R, particularly good if you have no programming experience (and like cats).
- DataCamp Introduction to R: Online interactive tutorial that covers the basics (intro is free, additional courses require membership fee)
- Intro to R: a series of short videos (2-6 minutes) demonstrating basic R tasks or concepts
- Learn R Programming: a good introductory R programming tutorial
For beginners who want a more comprehensive guide
- R Bootcamp: a tutorial developed by Jared Knowles
- R Guide: a thorough (but accessible) guide developed for people doing (personality) psychology research
- R Tutorial (by Kelly Black): introduction to R from basic data types to basic statistics
For intermediate users who are familiar with command line interfaces and want to learn R
- R Tutorial: covers both R and statistics, from basics to advanced methods (tip: use the "R Tutorials" navigation section on the right side)
- R Tutorial Series (Blog): a series of clear how-to guides (see contents menu in the right navigation bar)
APS guide to Learning to Work With R
Resources to help you learn and use R: from the Institute for Digital Research and Education at UCLA
A collection of R tutorials