Graphics Reference
In-Depth Information
Figure 6-3: These small components in a market basket graph are related
spare parts that were purchased together.
This particular component is a collection of nodes that represent obscure
replacement parts that, on occasion, may be purchased together.
Identify
Inthe1990s,theauthorswerebuildingavisualizationofabankingnetwork.
At one point, the CEO heard about the project and decided to see it
firsthand. Because he was a very action-oriented CEO, he immediately took
control of the mouse. Although the authors had identified some very
interesting red nodes in this network, the CEO first went to the big
nodes—the well-known familiar nodes—to identify them. This helped him
confirm his intuitive understanding of what he was seeing. By recognizing
and validating these known points first, he could gain confidence before
proceeding to explore the anomalies. It also helped to establish some
landmarks in the visual scene—he could refer to the known large nodes and
the relationship of other nodes to the known nodes.
You can identify data points in multiple ways. Labels, if already added, are
excellent but can show only a small amount of data. Tooltips, if available
in the graphing software, can be effective because they are immediately
 
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