Yeah R is used. But teams will use all sort of things
Honestly speaking though, you should know all of them. My guidance is being familiar (i.e. recognizing code for) R, Python, MATLAB, and Visual Basic. I got a minor in comp sci in college and picked the courses that focused on C++, but have never used that language (the skills have been useful though)
I would recommend taking a few classes in basic programming. Think an intro to comp sci class, an object oriented programming class, an algorithms class and then something else. I'd recommend something focused in one language (like c++).
When you're a decent programmer picking up shit like R, matlab, and Python is incredibly simple since it almost all runs like pseudocode.
>>14223607 The only correct post here. Excel and visual basic are used all over the damn place. So is MATLAB (especially if you work with Engineers) which is not recommended enough desu.There's really no superiority between any of them. You're probably not going to be doing anything groundbreaking with any of them so you can essentially use any one of them (along with appropriate packages and libraries). Personally, I like to be flexible with whatever the project I'm on is mainly using and go from there.