- common commands; and so on. For Lisp programmers, perhaps the most
- useful analogy is to say that swankr is to ESS what SLIME is to
- ILISP. At present, however, ESS mode remains active in R source
+ common commands; and so on. On the other hand, ESS is mature,
+ feature-rich software, while swankr is only a little more advanced
+ than a proof-of-concept. For Lisp programmers, perhaps the most
+ useful analogy is to say that swankr intends to be to ESS what
+ SLIME is to ILISP. At present, ESS mode remains active in R source