treemap

Treemap plot for Agglomerative Clustering Output Only

This plots NC clusters based on the cluster scheme given by Z in a treemap plot. Each rectangle corrresponds to a cluster of observations.

NOTE: This does not implement the general case for treemap plots. This only does the case where each level is a binary split, as in agglomerative clustering.

Input Arguments (see below for their usage):

• Z is the output from the linkage function or model-based clustering.
• NC is the number of clusters.
• FLAG is an optional argument that specifies whether or not the labels are added to the rectangles. The default is to display the labels. Any value for flag will cause them NOT to be displayed.

Output Arguments:

• None

Synopsis

treemap(Z,ncp,flag)

References:

Johnson, B. and B. Shneiderman. 1991. “Treemaps: A space-filling approach to the visualization of hierarchical information structures,” Proceedings of the 2nd International IEEE Visualization Conference, 284-291.