Returns string specifying type of axis.
| Number | Type | Compulsory | Default | Description |
| 1 | string | Yes | Axis ID |
Return type: string
| 'X' | X-axis |
| 'Digital' | A Digital Y-axis. (Created with Curve /dig or menu ) |
| 'Main' | Main Y-axis (axes at bottom of graph) |
| 'Grid' | Grid Y-axis (axes stacked on top of main) |
| 'NotExist' | Axis does not exist |
| ▲Function Summary▲ | ||
| ◄ GetAxisLimits | GetAxisUnits ▶ | |