This example combines an adjacency matrix with a force-directed network graph to visualize pairwise relationships from a TSV dataset of numeric node pairs. The matrix displays presence or absence of edges as black or grey cells, while the force simulation using `d3.forceSimulation`, `forceLink`, `forceManyBody`, and `forceCenter` positions circles representing nodes. Node colors are assigned based on degree thresholds, and users can drag nodes to rearrange the graph. Both views update simultaneously via d3 v5's zoom and drag behaviors.