Here are some of our favourite resources for continuing to develop you R skills beyond the end of the workshop.
(Page still under development - more coming soon!!)
Data processing in R
- DataCamp - interactive courses for programming in R (free introductory levels, ££ for more advanced)
- CodeAcademy - interactive exercises for introductory R
- Software Carpentry - similar-style materials to those we used in the course, but slightly more content, includes further information on writing your own functions and using R Markdown.
- R for Data Science - textbook written by the author of the tidyverse himself, freely available online
- Gorilla to Tidy Data - Emma’s tutorial for processing output files from the online experiment platform Gorilla
Cheat sheets
Cheat sheets are handy summaries of key tools. I used to print these and stick them by my desk for easy reference!
You’ll find cheatsheets for dplyr
, tidyr
, and ggplot2
here
Mixed effects models
Conceptual understanding
(Just because this deserved another plug!)
Tutorials
- Bodo Winter’s tutorial - Parts 1 & 2
- Violet Brown’s An approachable introduction to linear mixed effects modeling with implementation in R - pre-print
- Singmann & Kellen (2019) - An introduction to mixed models for experimental psychology - pre-print of book chapter
- Baayen, Davidson & Bates (2008) - Mixed-effects modeling with crossed random effects for subjects and items - paper published in the Journal of Memory and Language (Bates is one of the creators of the lme4 package)
Approaches
- Meteyard & Davies (2020) - Best practice guidance for linear mixed-effects models in psychological science - paper published in the Journal of Memory and Language
Coding categorical variables