Hi there, probably a very simple question for R users
I have a dataset such as:
subject Group variable
AAA 1 1.5
BBB 2 3.1
CCC 3 3.9
DDD 4 1.2
I'd like to put together people from group 3 and group 4. How could I do that with R?
p.s. using RStudio and if you could give a bit of explanation on how and why doing it in a certain way, it would be amazing thank you
Thank you!