# Dot plot with intervals

> Estimates with how sure they are. Sample data: on-time delivery of six carriers with confidence intervals, against a 95% SLA.

- Type 050 · Distribution
- Component: `<DotPlotWithIntervals>`, the same name as the Figma component
- Install: `npx shadcn add @chartory/dot-plot-with-intervals` (free in Hearth: the public registry, no token; Signal with Code and Complete)
- Type page: https://usechartory.com/charts/dot-plot-with-intervals

## 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 Dot plot with intervals component to your project.

```bash
npx shadcn add @chartory/dot-plot-with-intervals
```

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

usage.tsx:

```tsx
import { DotPlotWithIntervals }
  from "@/components/chartory/dot-plot-with-intervals"

<DotPlotWithIntervals
  data={carrierOnTime}
  size="m"
  legend
/>
```

## Props

### `<DotPlotWithIntervals>`

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

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| data | DotPlotWithIntervalsData | 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. |

### DotPlotWithIntervalsData

The data prop: one object for the whole chart.

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| min | number | Required | The bottom of the value scale. |
| max | number | Required | The top of the value scale. |
| target | number | Required | The target value. |
| ticks | [number, string][] | Required | The axis ticks: [value, label] pairs. |
| rows | DotPlotWithIntervalsRow[] | Required | One entry per row. |

### DotPlotWithIntervalsRow

One object per entry in rows.

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| label | string | Required | The name shown on the chart. |
| v | number | Required | The value. |
| lo | number | Required | The interval's low end. |
| hi | number | Required | The interval's high end. |

## Dot plot with intervals: a React and Figma chart in four sizes

### What does a dot plot with intervals show?

A dot plot with intervals marks each estimate as a dot with a line for its confidence interval, against a target. Items whose interval crosses the target show as uncertain. Use it for on-time rates, conversion rates and survey results with sample sizes.

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 Dot plot with intervals component?

It is one **<DotPlotWithIntervals>** component. Its props are the Figma properties with the same names and values, and the props table above lists them. The data is an estimate and an interval 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?

- **Is there an interval per item?** Yes means the dot plot with intervals fits.
- **Is there a target?** Yes means the dot plot with intervals fits.
- **Is it estimates, not raw spread?** Yes means the dot plot with intervals fits.

### When does another type fit better?

- **Plain values.** Use Lollipop instead.
- **Ranges with no target.** Use Dot strip instead.
- **The spread of raw values.** Use Box plot instead.

## Interval questions

### Does the Dot plot with intervals 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/dot-plot-with-intervals. The Installation guide has the steps.

### Can my coding agent install it?

Yes. Connect the Chartory MCP server and ask for the dot plot with intervals chart; the agent runs the same command and you review the diff.

### What data does it expect?

An estimate and an interval 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/050-ci-dots-carriers 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.