A brief practical introduction to antigenic cartography using the R package Racmacs, available from github or CRAN. There are also a series of additional resources on understanding and using antigenic cartography.
The main resource is the tutorial.Rmd notebook. If you only want to use the viewer, then use simple-tutorial.Rmd (this has much less functionality, but is a good place to start).
I'm happy to give in-person/online tutorials if you have a group interested in learning and applying antigenic cartography; email me. I will prioritise groups within my networks (Cambridge Infectious Diseases, UKHSA, GISRS, CEIRR, PROVAC).
Any problems with Racmacs, please add an issue (ideally with a simple reproducible example of your problem)
If you have more general questions, please put them in the Discussions forum