| TSTr-package | Ternary Search Tree for Auto-Completion and Spell Checking |
| addToTree | Adds a set of strings to a ternary search tree |
| addWord | Adds a single word or string |
| completeWord | Autocompletion of strings |
| dimTree | Tree dimensions |
| newTree | Creates a new ternary search tree |
| PNcheck | Spell checking using ternary search trees |
| SDcheck | Performs spell checking using symmetric delete spell correction |
| SDkeeper | Pre-creates a data.table or a ternary search tree |
| searchWord | Search a string |
| TSTr | Ternary Search Tree for Auto-Completion and Spell Checking |
| XMIwords | 10001 most frequent English words |