Choropleth

import { Choropleth } from "diagrammatic";

A rate, never a count. The tiles are an abstract landmass. The legend is the scale a reader can use.

The east edge is the dark band, and it darkens further toward the south. The capital and the west coast form two smaller hot spots. The interior stays pale, because this is a rate and a large tile is not a large problem.

The metric remains errors per 1k sessions, now on hexagonal cells. One region, one hex. Adjacency is approximate. This is not a hexbin.

The eastern hexes are the dark cluster, and every column darkens toward the south. The west sits in between, and the middle stays pale.

Use it for

Rates and ratios across regions on one sequential ramp.

Watch out

Big areas dominate; map rates, never raw counts.