Bubblecharts are complex visualizations in which a large variety of data can be displayed at once. To create a bubblechart we will need at least three datafields from the Measures category. Additionally fields from the Fields category can be used to assign colors and labels to the bubbles. In the bubblechart example below each bubble represents an application object for which the technical and functional quality are displayed on the x- and y-axis. The size of the bubbles represents the total costs of the application, and the colors are the application's security levels. This bubblechart allows you to make choices for application rationalization and consolidation, and can be configured in six steps.
In the example below the starting configuration for a Chart is displayed. No datafields have been dragged into the columns and rowsbar yet, and no specific Chart type has been selected. Only the 'Chart' option has been selected in the red square.
To select the 'Bubblechart' charttype, click on the gears icon and select 'Chart Types'.
In the pop-up window the full range of available charttypes is displayed. Select the Bubble chart and close the pop-up window.
Now that we have the right setup, we can start dragging datafields in the columns and rowsbar. In the example below three datafields from the Measure category (purple) have been dragged into the columnsbar. The order of fields will determine which field is (from left to right) assigned to x-axis, y-axis and z-axis (bubble size).
The minimum requirements for creating a bubblechart have now been met, and a visualization is displayed. However, to create more depth we need additional fields.
In the example below a datafield from the 'Fields' category has been added to the rowsbar. The datafield contains object titles. This creates the possibility to visualize a bubble for each object title. To achieve this, slide the data level bars to the right as shown below.
To add colors to the bubbles we need one more field in the columnsbar. Drag a field from the 'Fields' category into the columns bar and slide the second data level bar to the right.