R is much more lisp-like than python: more functional, more emphasis on DSLs and metaprogramming, and the community is far more inviting to New comers: reminds me a lot of Racket in that regards.
Yes! People ask me what the best R programming book I’ve ever read is, and I like to say “How to Design Programs.”
I keep thinking someday I’ll try and build some of the missing stats infrastructure in Racket. The problem at present is time and that this stuff is real work!