nltk
n-gram
coffee> nltk = require 'nltk' ngram: Function: ngramcoffee> nltkngramFunction: ngramcoffee> nltkngram 3undefinedcoffee> 3 enum: Functionsim: Functioncoffee> Tri = 3 enum: Functionsim: Functioncoffee> Trienum 'ABCDEFG' 'ABC''BCD''CDE''DEF''EFG' coffee> Trisim 'ABCDEFG''EFGABC'0.4472135954999579