Welcome to the Analysis and Visualization of Interactions in R workshop!
This workshop will teach you how to analyze and visualize interactions in regression models in R using the emmeans package and with base R coding.
Requirements
Before beginning the seminar, please make sure you have R and RStudio installed.
Please also make sure to have the following R packages installed, and if not, run these commands in R (RStudio).
install.packages("emmeans", dependencies=TRUE)
install.packages("ggplot2", dependencies=TRUE)
Code Files
The following code files can be used to participate in the R coding in the workshop. Right-click to download or left-click to open the file, then copy-and-paste the whole file into the RStudio script editor. For those participating in a live workshop, we encourage you to use the file without solutions to the exercises.
Presentation slides
Analysis and Visualization of Interactions in R : Left-click the link to open the presentation directly. To download with all images, open the presentation (by left-clicking), then right-click in the presentation, select “Save As”, and then make sure you save as type “Webpage, Complete” (Note: this will download the webpage and a folder of images and style files).
Use any web browser (Chrome, Firefox, etc.) to view the seminar. Once it is open, use the following keys to alter the display:
- use arrow keys, mouse click, or spacebar to advance slides
'a'toggles between slide-show view and handout view (view all slides at once)'k'to disable advancing slides with mouse-click (if you need to copy-paste code, for example)'s'andbto make the font bigger and smaller'F11'to go to full-screen and back