SAS/GRAPH
Network Visualization Workshop provides the capability to create a
minimal node data set from the link data set that you provide. This
minimal node data set can be useful when you plan to create statistical
graphs based on link data and don't require node attributes for your
analysis.
To generate
node data from link data, do any one of the following:
-
When you open a link data set,
select
Generate node data in the Open dialog
box.
-
When you create a new project,
in the New Project dialog box, select the link data set and then select
the
Create nodes check box.
-
After you have opened a link data
set, select
Data
Create
Node Data.
When you
generate node data from link data, you are prompted to specify the
FROM and TO variables in your link data set.
For details, see Specify Data Attributes. SAS/GRAPH
Network Visualization Workshop creates a table that contains the nodes
along with the following other variables:
-
The Label variable determines the
text that appears when you apply a label to nodes in a network graph.
-
The In Arcs, Out Arcs, and Total
Arcs variables are used to help keep track of the links that are associated
with each node. The value for Total Arcs equals the value for In Arcs
plus the value for Out Arcs.
You cannot
save the node data set by itself. However, if you save the data as
part of a project, then the node data is preserved with the project.