Variable to Define Tree Axis

Use this option to specify the variable to define the X-axis of the hierarchical tree for the resulting cluster analysis.

Available options are listed in the following table:

Option	Definition
HEIGHT	This default parameter uses values in the _HEIGHT_ variable to determine the height of each node. This variable is generated based on the clustering method chosen.
LENGTH	Defines the height of each node as its pathlength from the root.
NCL	Defines the height of each node by the number of clusters.
RSQ	This default parameter uses R2 values in the _RSQ_ variable to determine the height of each node. This variable might or might not be generated depending on the clustering method chosen.

Note: The RSQ option is available only when AVERAGE, CENTROID, or WARD Clustering Method is chosen.

To Specify a Variable to Define the Tree Axis:

Check the Perform SAS-based Clustering on the Distance Matrix box.

Select the desired variable using the drop-down menu.

For Additional Information

Refer to the SAS PROC TREE documentation for more information.