| Name | Desciption | Data Type |
|---|---|---|
| LEN_POS_NUMARRAY | Returns the length of the number string held by the number array at the specified position. | Long |
| Pos | The position number (between 1 and the total count of items in the number array) of the value required. | Long |
| MyString | The alphanumeric string for analysis. | String |

The value -1 represents an error returned by the function.