What is a force-directed layout?+
Force-directed layout simulates physics: nodes repel each other like charged particles while edges act as springs pulling connected nodes together. The result is a natural-looking graph where connected groups cluster together.
What is the difference between directed and undirected graphs?+
Directed graphs have arrows showing one-way relationships (A influences B). Undirected graphs show mutual relationships with lines (A is connected to B, bidirectionally). Social friendships are undirected; web links are directed.
How do I highlight clusters in a network graph?+
Enable community detection (Louvain or modularity algorithms) to automatically group nodes into clusters and colour them by community. This reveals hidden structure in large graphs.
What data format does the tool accept?+
JSON node/edge lists, CSV adjacency matrices, or GraphML. Node CSV needs columns: id, label. Edge CSV needs columns: source, target, and optionally weight.