This example shows a force-directed network layout where nodes are grouped into fixed, prominent clusters by categorical labels. The visualization demonstrates how d3.forceSimulation, with forces for collision, x-position, and y-position, organizes data points into distinct color-coded groups based on a numeric field. Each node is rendered as a colored circle, with labels displayed on hover, and the simulation runs in a continuous loop to maintain the cluster structure. The code uses the D3 library’s force simulation and selection APIs to update positions each tick.