#### 15.4.6.9 Stair Group

Stair series objects are created by the `stair` function. Each `hggroup` element of the series contains a single line object as a child representing the stair. The properties of the stair series are

`color`

  The RGB color or color name of the line objects of the stairs. See Colors.

`linewidth`
`linestyle`

  The line width and style of the line objects of the stairs. See Line Styles.

`marker`
`markeredgecolor`
`markerfacecolor`
`markersize`

  The line and fill color of the markers on the stairs. See Colors.

`xdata`
`ydata`

  The original x and y data of the stairs.

`xdatasource`
`ydatasource`

  Data source variables.