Basic Analysis and Graphing - SAS

386 Creating Bubble Plots Chapter 15
Interact with the Bubble Plot
Specifying Two ID Variables
Specifying a second ID variable provides a hierarchy of categories, but the bubbles are not split by the second
category until they are selected and split interactively. In the launch window, if you specify a second ID
variable, Split and Combine buttons appear in the report window.
For example, you might specify a country as the first ID variable, resulting in a separate aggregated bubble
for each country. A second ID variable, perhaps designating regions within each country, would further split
each country when the interactive Split button under the graph is pressed.
Specifying a Time Variable
Maintains separate coordinates, sizes, and colors for each unique time period. The bubble plot shows these
values for a single time period. For example, if the Time column contains years, the bubble plot is updated
to show data by each year.
To move the time label on the plot, click and drag the label.
If data is missing within a time period, the value is linearly interpolated. If data is missing for the first or last
time period, the value is not estimated, but left as missing.
Related Information
• “Control Animation for Dynamic Bubble Plots” on page 386
• “Example of Specifying Only a Time Variable” on page 392
Interact with the Bubble Plot
Use the Bubble Plot platform in one of two modes:
• Static mode, where the bubbles are fixed and do not animate over time (no Time variable is specified).
See “Example of a Static Bubble Plot” on page 396.
• Dynamic mode, where the bubbles are animated over time (a Time variable is specified). See “Example of
a Dynamic Bubble Plot” on page 383.
You interact with both static and dynamic bubble plots in different ways.
Control Animation for Dynamic Bubble Plots
Use sliders and buttons to control the animation of dynamic bubble plots.