Dendrogram

import { Dendrogram } from "diagrammatic";

Twelve topics, with a height for each merge. Lower joins show closer topics.

Login, 2fa, and session join first. Billing, refund, and invoice join next. The auth and billing clusters join at 0.40. Export, api-key, and webhook form another cluster by 0.28. Other hangs off the last join at 0.78.

Use it for

Hierarchical clustering: what joined what, and how early.

Watch out

Height is the metric; cutting at a level is what defines the clusters.