Fastest until you include the runtime. (And even then, it falls pretty far behind both Python and Julia in terms of ease-of-use.) The main advantage of R is the

Fastest until you include the runtime. (And even then, it falls pretty far behind both Python and Julia in terms of ease-of-use.) The main advantage of R is there's a package for everything, because of how old it is. But it's not especially easy to read or learn. (Or especially hard either--it's definitely easier than most languages, it's just no longer on the cutting edge of that.)