Basic Analysis and Graphing - SAS

480 Creating Tree Maps Chapter 19
Additional Examples of the Tree Map Platform
Examine Patterns in Car Safety
This example uses the Cars.jmp sample data table, which contains impact measurements of crash-test
dummies in automobile safety tests. Compare these measurements for different automobile makes and
models during the years 1990 and 1991.
1. Open the Cars.jmp sample data table.
Filter the data to show only the years 1990 and 1991 and create a subset of the Cars.jmp data table.
2. Select Rows > Data Filter.
3. Select Year.
4. Click Add.
5. Select 90 and 91.
The rows corresponding to 1990 and 1991 are highlighted in the data table.
6. Select Tables > Subset.
7. Ensure that Selected Rows is selected and click OK.
A new data table (Subset of Cars) appears that contains only the data corresponding to the years 1990
and 1991.
Now, using the Subset of Cars data table, create the tree map.
1. Select Graph > Tree Map.
2. Select Wt (weight) and click Sizes.
3. Select Make and Model and click Categories.
4. Select LLeg and click Coloring.
L Leg represents a measurement of injuries resulting from the deceleration speed of the left leg, where
more deceleration causes more injury.
5. Click OK.
The report window appears.