find clusters in a graph in javascript

To find clusters in a graph in JavaScript, we can use community detection algorithms. One such algorithm is the Louvain algorithm, which is a widely used algorithm for detecting communities in graphs.

To use the Louvain algorithm in JavaScript, we can use the community module in the igraph-js library. Here's an example code snippet to demonstrate how to use this module to find clusters in a graph:

index.tsx
const igraph = require('igraph-js');

// create a graph
const graph = new igraph.Graph();
graph.addVertices(6);
graph.addEdge(0, 1);
graph.addEdge(1, 2);
graph.addEdge(2, 0);
graph.addEdge(3, 4);
graph.addEdge(4, 5);
graph.addEdge(5, 3);

// find communities using the Louvain algorithm
const communities = graph.community();

// output the communities
console.log(communities);
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In this example, we create a graph with 6 vertices and 6 edges. We then use the community() method to detect communities in the graph using the Louvain algorithm. Finally, we output the detected communities to the console.

The output will be an array of arrays, where each sub-array represents a cluster or community of vertices in the graph.