| ApplyKlass | Match and convert a classification |
| CheckDate | Internal function to check date |
| ConvertTable | Code level convert table (internal function) |
| CorrespondList | Correspondence list Print a list of correspondence tables for a given klass with source and target IDs |
| formattering | Convert vector to the right format |
| GetFamily | Identify corresponding family from a classification number |
| GetKlass | Fetch classification data Fetch Statistics Norway classification data using API |
| GetName | Get the name of a classification version |
| GetNums | Get target ID numbers from Url |
| GetUrl | Get json file from Url |
| GetUrl2 | Get json file from Url - alternative version |
| GetVersion | Get version number of a class given a date |
| klassdata | Testdata for klassR package |
| levelCheck | checking which level input data is |
| Levels | Title |
| ListFamily | Classification family list Print a list of all families and the number of classifications in each |
| ListKlass | Classification list Get a full list of all classifications and codelists |
| MakeChar | Conversion to character |
| MakeUrl | Internal function to create URL address |
| SearchKlass | Search Klass |
| splitChar | insert missing dots to the right place in a string |