#### Description:

This attribute specifies a label to be attached to each axis of a Frame when it is represented (e.g.) in graphical output.

If a Label value has not been set for a Frame axis, then a suitable default is supplied.

Type:

  String.

#### Applicability

##### Frame

The default supplied by the Frame class is the string `"` Axis <n >`"` , where <n > is 1, 2, etc. for each successive axis.

##### SkyFrame

The SkyFrame class re-defines the default Label value (e.g. to `"` Right ascension`"` or `"` Galactic latitude`"` ) as appropriate for the particular celestial coordinate system being represented.

##### TimeFrame

The TimeFrame class re-defines the default Label value as appropriate for the particular time system being represented.

##### FrameSet

The Label attribute of a FrameSet axis is the same as that of its current Frame (as specified by the Current attribute).

#### Notes:

- Axis labels are intended purely for interpretation by human readers and not by software.

- When specifying this attribute by name, it should be subscripted with the number of the Frame axis to which it applies.

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