Graphics Programs Reference
In-Depth Information
You can do more exploring on your own. Now go back to Figure 7-24 and
tighten it up. Better looking labels that are more obvious would be good.
Maybe add some color instead of all grayscale? How about a short blurb
about why the top 50 percent of states are highlighted? What do you get?
Figure 7-26.
FIGurE 7-26 Standalone parallel coordinates plot on SAT scores
reducing Dimensions
When you use Chernoff Faces or parallel coordinates, your main goal is to
reduce. You want to find groups within the dataset or population. The chal-
lenge is that you don't always know where to start looking in the faces or
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