Figure 2.
Example of a generalization hierarchy for the length-of-stay variable. Higher levels within the hierarchy are associated with greater amounts of generalization. Lower levels within the hierarchy are associated with greater precision.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.