DN2-3 - Classification and transformation of attribute measurement levels

This Topic has been deleted in future versions of the GIS&T Body of Knowledge

Author and Citation Info: 

DiBiase, D., DeMers, M., Johnson, A., Kemp, K., Luck, A. T., Plewe, B., and Wentz, E. (2006). Classification and transformation of attribute measurement levels. The Geographic Information Science & Technology Body of Knowledge. Washington, DC: Association of American Geographers. (2nd Quarter 2016, first digital).

Learning Objectives: 
  • Identify a variety of likely measurement level transformations (e.g., the classification of ratio data yields ordinal data)
  • Describe the pitfalls, in terms of information loss and analytical options, of transforming attribute measurement levels
  • Reclassify (group) a nominal attribute domain to fewer, broader classes
  • Discuss the relationship of attribute measurement levels to database query operations