In Visual Analysis, is there any way to create to a network analysis object which is a hybrid of a Hierarchical network analysis object and an Ungrouped network analysis object that allows both nodes displayed in a hierarchical arrangement and nodes directly linked in a source-target arrangement that does not follow the hierarchy?
Why do I need this? What am I trying to do?
I am trying to create an interactive network analysis object that visualizes a thesaurus. Hierarchical relationships are used to visualize the relationships between broader terms and narrower terms (along the lines of a family tree). This creates several tree-like structures. Source-target relationships are used to visualize the relationships between related terms that do not have a hierarchical relationship (in some cases linking the trees).
Is there any way to accomplish this?
Unfortunately the network graph in network analysis only supports a force-directed layout algorithm which means nodes are positioned dependent on their place in the network and how well-connected they are. I guess - what you need is some sort of org-chart diagram which is something on the list of visuals to be added to VA but not currently available.
I had a similar challenge not too long ago when visualizing scientific papers around COVID19. The idea was to use SAS visual-text analytics to determine three-levels of topics and then group papers by that as well as link papers together if they reference each other. I ended up creating separate disconnected graphs for each topic as shown here:
Not ideal as a hierarchical view/structure may be easier for the audience but it did work out quite ok in the end. I combined the network plot with other visuals in the report to allow easier filtering / drill operations.
Sorry - I don't have the easy answer but maybe some of that helps.
See how to use one filter for multiple data sources by mapping your data from SAS’ Alexandria McCall.
Find more tutorials on the SAS Users YouTube channel.