X-Y Plot graphs can be used for:
If your data consists of X-Y data pairs, then you will want to use an X-Y Plot graph. X-Y Plot data items consist of two values: the x-value and the y-value, which represent the coordinates of that data item. The data item is displayed as a symbol. You can also add a line, bubble, or fill area for the data item. Because of the nature of the coordinate system, X-Y graphs do not have categories.
Example 13.11 below shows how an X-Y graph works.
X-Y graphs are in the Plot Data Class (see Chapter 12 for details). To create an X-Y graph with PopChart XML, create a Graph element and set its Type attribute to XY, as shown in the example below.