The graphviz functions for visualizing the topic model are finicky and it's costly to have to update them with respect to both networkx and graphviz.
Two proposed options :
1 . We add a function that makes it easy to get to the hierarchy edge list so that others could more easily visualize the hierarchy themselves
2. We go a step further and rework the visualization code so it just uses networkx
The graphviz functions for visualizing the topic model are finicky and it's costly to have to update them with respect to both networkx and graphviz.
Two proposed options :
1 . We add a function that makes it easy to get to the hierarchy edge list so that others could more easily visualize the hierarchy themselves
2. We go a step further and rework the visualization code so it just uses networkx