Can the Perseus vocabulary tool sort the vocab for instance using the following parameters; All words that occur in book 3 of the Iliad that occur at least 30x but that don’t occur in books 1 and 2.?
I don’t think you can do that with the Perseus tool, but I think Homer and the NT are just about the only texts for which there are printed resources that do things like that.. You may turn up something in Google books. I know I used to have a Dutch Homer frequency lexicon like that (not that I got around to actually using it:-)).