Trends

The trends capability is used to determine the changes in an area over time.

For instance, to find the percentage rate of change for a given population over a given time interval, the following trends question may be asked:

"Where are the census blocks that have experienced more than a 50% population growth change between 1970 and 1990?"


trends.html

Institute of Water Research, Michigan State University
Last Revision: February 22, 1997