I'm looking for software that will allow me to:
- Import an adjacency matrix (ideally one with weights, rather than just binary) and visualize the graph
- Manually edit the labels and positions of the nodes by clicking & dragging
I'm pretty sure Gephi can do the editing. I'm not sure about importing an adjacency matrix. Gephi is Java-based and offers an interactive editor, IDE-style, if this is what you want. But interactive editing is feasible only for very small graphs.