> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usedatabrain.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Scatter and Bubble Charts

> Set up Scatter and Bubble (V1) charts. For Bubble V2 with measure-based size, see Bubble Chart V2.

Scatter and Bubble charts show points on X and Y axes. **Scatter** uses two numeric dimensions or measures. **Bubble (V1)** adds a constant size multiplier. For size driven by a measure, use [Bubble Chart V2](/guides/visualizations-actions-and-appearance/chart-setup/bubble-chart-v2).

## Data Requirements

| Chart           | Requirements                                                        |
| --------------- | ------------------------------------------------------------------- |
| **Scatter**     | Horizontal axis (X), Vertical axis (Y) — dimensions or measures     |
| **Bubble (V1)** | Same as Scatter + **Constant for bubble size** (numeric multiplier) |

## How to Set Up Scatter

1. Create or edit a metric with at least one dimension and one measure (or two dimensions).
2. Click the **Charts** icon and choose **Scatter**.
3. Click **Settings** → **Chart types** → **Chart properties**.
4. Under **Required Axis**:
   * **Horizontal Axis**: Column for X.
   * **Vertical Axis**: Column(s) for Y (multiple create multiple series).

## How to Set Up Bubble (V1)

1. Set up as for Scatter.
2. Choose **Bubble** from the chart type list.
3. Under **Required Axis**, set **Horizontal Axis** and **Vertical Axis**.
4. Set **Constant for bubble size** — a number that scales all bubble sizes (e.g., 20).

## Scatter vs Bubble V1 vs Bubble V2

| Chart     | X                    | Y                    | Size                           |
| --------- | -------------------- | -------------------- | ------------------------------ |
| Scatter   | Dimension or measure | Dimension or measure | N/A                            |
| Bubble V1 | Dimension or measure | Dimension or measure | Constant (same for all points) |
| Bubble V2 | Dimension or measure | Dimension or measure | **Measure** (e.g., SUM, COUNT) |

Use **Bubble V2** when each point’s size should reflect a measure (e.g., revenue, count). Use Bubble V1 when you only need a uniform scale factor.