| dtm2 | Wrappers to DocumentTermMatrix and DocumentTermMatrix to use n-gram tokenizaion |
| dtmwrappers | Wrappers to DocumentTermMatrix and DocumentTermMatrix to use n-gram tokenizaion |
| ngramrr | General purpose n-gram tokenizer |
| tdm2 | Wrappers to DocumentTermMatrix and DocumentTermMatrix to use n-gram tokenizaion |