Graphics Reference
In-Depth Information
a different layout every time, you must save this layout. In some graph
packages, you may want to save different versions of the file each with
different filters and layouts so that you can easily return to them.
Graph software may offer ways to manage multiple subsets of a graph, each
with a different set of nodes, edges, and layout. For example, Cytoscape
allows a selected portion of a graph to be copied and managed as a separate
network (File
⇒
New to create new graph instances, and the Network tab
to manage different networks). Gephi offers multiple
workspaces
. In this
market basket analysis using Gephi, you can select all the points (using
the rectangle selection). Then, you right-click to pop up a context menu.
Choose “Copy to… New Workspace” to access workspaces via a menu in the
bottom-right corner.
Now, you can apply a new layout to this filtered subset of nodes. For
example, using Force Atlas 2 layout with Prevent Overlap turned on, Scaling
set to 0.6 (so the layout does not spread out too far), and LinLog Mode
turned on (to enhance separation of clusters), you can produce a layout with
more visually distinct clusters as shown in
Figure 6-6
.
