| rLTP-package | rLTP |
| isBIG5 | Indicate whether the encoding of input string is BIG5. |
| isGB18030 | Indicate whether the encoding of input string is GBK. |
| isGB2312 | Indicate whether the encoding of input string is GB18030. |
| isGBK | Indicate whether the encoding of input string is GBK. |
| isUTF8 | Indicate whether the encoding of input string is UTF-8. |
| ltp | R Interface of LTP-cloud service |
| rLTP | rLTP |
| toUTF8 | Convert encoding of Chinese string to UTF-8. |