cumbin

Dependency-free browser ESM cumulative binning for JavaScript and Observable notebooks.

import { cumbin } from "cumbin";

In Observable:

import { cumbin, summarizeBins } from "npm:cumbin"

Or, with a direct UNPKG dynamic import:

cumbin = (await import("https://unpkg.com/[email protected]/cumbin.js?module")).default

index.js is also included as a compatibility alias.

rows = cumbin(
  [
    { label: "A", value: 12 },
    { label: "B", value: 3 },
    { label: "C", value: 17 }
  ],
  { value: "value", binSize: 10 }
)

The module exports cumbin, cumulativeBins, summarizeBins, and normalizeSpec.