I recently ran a workshop series on the basics of R and the Tidyverse.
About half of the participants had problems with installing with one or more of the packages we used in the course (most had problems with one or more of: Easystats, ggstatsplot, naniar). For most of the people who experienced these problems, it looked like the packages did install without error messages, but all had a warning that Rtools was not installed.
I am not sure that the missing installation of Rtools caused the problems, because many participants also had problems with the security settings.
I am not sure if I in the future should make sure that all participants have Rtools installed.
Can you help me understand what Rtools does, and when Rtools is needed?