Graphics Reference
In-Depth Information
Figure 10-6 shows the same hierarchy drawn three times depicting a
grouping of the United States in 1800 with objects sized based on the
population of each state.
Figure 10-6: The same hierarchy of U.S. states from 1800 is shown as a
node-and-link hierarchy (top), treemap (left), and hierarchical pie chart
(right).
Figure 10-7 shows a treemap of data from occupations in the United States
based on data from the U.S. Bureau of Labor Statistics as of 2010
( www.bls.gov/oes/ ) . Each rectangle is sized by the number of people with
that occupation and colored by the median income ranging from dark blue
 
 
 
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