Graphics Reference
In-Depth Information
By creating a new layout on this isolated subset of the graph you see clusters
that are much more distinct. For example, there is a cluster at the bottom as
shown in
Figure 6-7
, which is connected by a single thin edge that may seem
worthy of investigation.
Figure 6-7:
A cluster of do-it-yourself topics appears at the bottom of the
market basket analysis.
Using identification interactions, individual items can be investigated. In
this cluster are do-it-yourself topics, indicating people are likely to purchase
multiple topics. As shown in
Figure 6-8
,
the topics connect back to the
central cluster through a small cluster of clearance topics and then to the
large cluster via two high-degree nodes—one of which is an extension cord,
and the other of which is a tape measure. These are both common items that
might be needed at the start of a project.
