2D Bubble Chart
From Grapheme wiki
A bubble chart is a type of chart that displays three dimensions of data. Each point in the chart is defined by a triplet (x, y, z) of associated data where x and y represent the location of the point in a Cartesian Coordinate Plane and the third value z represent the area of the point marker. Bubble charts can facilitate the understanding of social, economical, medical, and other scientific relationships.
Bubble charts can be considered a variation of the scatter plot, in which the data points are replaced with bubbles. As the documentation for Microsoft Office explains, "this type of chart can be used instead of a Scatter chart if your data has three data series, each of which contains a set of values".
Incorporating further dimensions of data
Additional information beyond their three primary values can often be incorporated by rendering the markers in different colors and patterns.
As an example, a bubble chart can be used to display house marked information where x values and y values represent the number of rooms and the market value of each property sold whilst the marker area represent the age of the buyer.
To create a Bubble Chart within Grapheme, click on 2D Charts → Bubble or Bubble (Gradient) from the toolbar of the Chart Explorer. Assign a name to the data series, select the Source Table and the View of the table containing the desired data sets. Select which columns should be used to define the X and Y axes, the Area of the bubbles and the Color.