Graphics Reference
In-Depth Information
This example shows some of different, critical roles that various nodes have
in this social network and how some of those roles can be revealed through
both statistics such as centrality and the visual representation. The statistics
also hint at some of the potential characteristics of these people. For
example, although people such as Tiny or Trey may have very low degree
(that is, very few edges), the edges that they do have are highly influential.
Expresseddifferently,accesstoTinyandTreymaybelimited,butiftheycan
be accessed, they can open up new large clusters.
Note
This data set is available in the supplementary materials under
ViralMarketing
. Note that the data has been cleansed, and names
are not actual names.
Layouts
Many different kinds of layouts can reveal different structures in the graph.
Node-and-Link Layouts
One common method for drawing graphs is to draw nodes as markers, and
edges as lines connecting them (also referred to as
links
).
Table 4-1
provides
more detail.
