#### 15.2.6 Marker Styles

Marker styles are specified by the following properties:

`marker`
  A character indicating a plot marker to be place at each data point, or `"none"`, meaning no markers should be displayed.
`markeredgecolor`
  The color of the edge around the marker, or `"auto"`, meaning that the edge color is the same as the face color. See Colors.
`markerfacecolor`
  The color of the marker, or `"none"` to indicate that the marker should not be filled. See Colors.
`markersize`
  A number specifying the size of the marker. The default is 1. A value of 2 is twice as large as the default, etc.