Choropleth maps & generalization
Download as PPT, PDF0 likes1,048 views
This document discusses choropleth map generalization and how it can potentially mislead. It compares choropleth maps showing well-being data by state versus congressional district. It also provides examples of choropleth maps with different classification schemes, such as standard deviation, equal number of classes with different class sizes, to demonstrate how generalization can impact the maps.
Choropleth maps & generalization
- 1. Choropleth Generalization • By Chris Hall, Davis School District, Farmington, Utah
- 2. Choropleth Generalization • Sometimes choropleth maps are generalized to the point that they mislead. Look at the well-being plotted out by state versus congressional district.
- 5. STATE PLATE VANITIZATION RATE
- 8. Choropleth 5 Classes, Standard Deviation
- 11. Choropleth 5 Classes, Equal Number (10 states in each class)
- 12. Choropleth 10 Classes, Equal Number (5 states in each class)