Basic Analysis and Graphing - SAS

Chapter 19 Creating Tree Maps 471
The Tree Map Window
• “Example Using Two Ordering Variables” on page 474
• “Example of a Continuous Coloring Variable” on page 475
• “Example of a Categorical Coloring Variable” on page 476
• “Tree Map Platform Options” on page 472
The Tree Map Window
To produce the plot shown in Figure 19.5, follow the instructions in “Example of Tree Maps” on page 467.
Figure 19.5 The Tree Map Window
Tip: To zoom in on the tree map, use the Magnifier tool or press the Z key.
Tree map rectangles can have the following attributes:
• Categories add labels to the rectangles. You can specify one or two categories. You can show or hide
labels using the Show Labels option. See “Context Menu” on page 472.
• Rectangle size is determined by one of the following:
– The Sizes variable, if you specify one.
– If you do not specify a Sizes variable, size is determined by the frequency of the category.
• Rectangle color is determined by one of the following:
– If the variable is continuous, the colors are based on a continuous color theme setting. The default
color theme is Blue to Gray to Red. The color of each value is based on the average value of all of
the rows. Blue represents the lowest values, and red represents the highest values. The color is most
intense at the extremes of the variable, and paler colors correspond to levels that are close to the
mean. For example, see “Example of a Continuous Coloring Variable” on page 475.