Wednesday, March 20, 2013

GIS 3015: Choropleth Mapping



The maps for this weeks lab show two different Choropleth Maps. The first map depicts a choropleth map with an appropriate color scheme depicting the population change by state in the United States between 1990-2000. One very helpful lesson I learned in this is how to change the data values (in this case the change in population growth values) to an more appropriate rounded number.
In the second map we averaged the population growth by region and used our own method to define classes. Because of the outliers I chose the natural breaks method to show more variation around the mean. I also manually drew a line in Adobe Illustrator to separate regions with the same color class value.

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