# Scatter

> Two measures per item, as dots. Sample data: 30-day return against volatility for BTC, ETH and tokens in layer 1, DeFi and meme groups.

- Type 034 · Relationship
- Component: `<Scatter>`, the same name as the Figma component
- Install: `npx shadcn add @chartory/scatter` (free in Hearth: the public registry, no token; Signal with Code and Complete)
- Type page: https://usechartory.com/charts/scatter

## Installation

1. **Set up the registry once.** This chart is free in Hearth and MIT licensed: no token. Add @chartory to components.json once (the URL alone, no headers), or skip this when another chart is already installed. [Installation guide](https://usechartory.com/docs/installation)

2. **Add the chart.** One command adds the Scatter component to your project.

```bash
npx shadcn add @chartory/scatter
```

3. **Use it.** Pass your rows. The props are the Figma properties.

usage.tsx:

```tsx
import { Scatter }
  from "@/components/chartory/scatter"

<Scatter
  data={returnVsVolatility}
  size="m"
  legend
/>
```

## Props

### `<Scatter>`

Every prop but data is a Figma property with the same name and values.

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| data | ScatterData | Required | The chart's data. The tables below list every field. |
| size | "xs" \| "s" \| "m" \| "l" | "m" | The size class. Each one is laid out again from the data. |
| legend | boolean | true | Shows the legend row under the plot. |

### ScatterData

The data prop: one object for the whole chart.

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| pts | [number, number, number, string, string][] | Required | One entry per point. |
| xmin | number | Required | The left end of the x scale. |
| xmax | number | Required | The right end of the x scale. |
| ymin | number | Required | The bottom of the y scale. |
| ymax | number | Required | The top of the y scale. |
| ticks | string[] | Required | The axis tick labels. |
| xt | [number, string][] | Required | The x axis ticks: [value, label] pairs. |
| smax | number | Required | The largest size. |

## Scatter plot: a React and Figma chart in four sizes

### What does a scatter plot show?

A scatter plot places each item by two measures, so links, clusters and outliers show. Colour adds a group. Use it for return against risk, price against rating or any two numbers per item.

Chartory ships it as a Figma component and a React component with the same name. The code installs from the shadcn registry with one command and lands in your project as a file you own.

### What is the Scatter component?

It is one **<Scatter>** component. Its props are the Figma properties with the same names and values, and the props table above lists them. The data is two values, a size, a group and a name per item.

Sizes **XS**, **S**, **M** and **L** re-lay the chart out from the data instead of scaling it, so labels stay readable at every size.

### When should I use it?

- **Are there two measures per item?** Yes means the scatter fits.
- **Is the link the point?** Yes means the scatter fits.
- **Are there just two measures?** Yes means the scatter fits.

### When does another type fit better?

- **One measure per item.** Use Horizontal bars instead.
- **Four zones to act on.** Use Quadrant instead.
- **Many measures per item.** Use Parallel coordinates instead.

## Scatter questions

### Does the Scatter chart work with shadcn/ui?

Yes. It installs through the shadcn registry with the shadcn CLI, and the file lands in your project.

### How do I install it?

It is free in Hearth and MIT licensed: add the @chartory registry URL once, no token, then run npx shadcn add @chartory/scatter. The Installation guide has the steps.

### Can my coding agent install it?

Yes. Connect the Chartory MCP server and ask for the scatter chart; the agent runs the same command and you review the diff.

### What data does it expect?

Two values, a size, a group and a name per item. The sample data comes with the component, and the props table lists every field.

### Which sizes does it ship in?

XS, S, M and L, in Figma and in code. Each size is laid out again from the data, so text and lines keep their size.

### Is it in the Figma file too?

Yes. chart/034-scatter has the same properties as the component.

### Does it follow light and dark mode?

Yes. Every paint is a token, so the chart follows light and dark mode and the collection you pick.

### Which plan has the code?

None for Hearth: it is free in the public registry, no token. The Signal collection (@chartory/signal) comes with Code and Complete.