04 Dec Create a Bubble Chart in Tableau
A bubble chart is a type of data visualization that displays three-dimensional data as a series of bubbles or circles on a two-dimensional grid. Each bubble represents a single data point, with:
- X-axis (horizontal): Representing one variable
- Y-axis (vertical): Representing another variable
- Bubble size: Representing a third variable (e.g., volume, value, or magnitude)
- Bubble color: Optionally representing a fourth variable (e.g., category, classification, or range)
Here’s an example:
Suppose we want to visualize the relationship between:
- The price of a house (x-axis)
- The size of the house (y-axis)
- The number of bedrooms (bubble size)
The bubble chart would display bubbles of different sizes and positions on the grid:
- A large bubble in the top-right corner might represent a spacious, expensive house with many bedrooms.
- A small bubble in the bottom-left corner might represent a compact, affordable house with fewer bedrooms.
Let us see an example to create a Bubble Chart in Tableau:
We have created a new sheet with the name Bubble Chart in the same Tableau project Amit_Tableau.twb.
Drag the fields to the respective pane in the Marks card:
- Profit measure: Drag to the Size pane under Marks card.
- Ship Mode dimension: Drag to the Label pane under Marks card
- Ship Mode dimension: Drag to the Color pane under Marks card
Go to Show Me on the top-right and click on the Bubble Chart to form it. After dragging, the Bubble Chart is created as shown below. We have set the view to Entire View:
1. Create a Bubble Chart in Tableau
Bubble Chart with Measure Values
We can also set the Sales into the labels and display it on the circle. Drag the Sales into the Labels pane of the Marks card:
2. Set a Label for a field in a Bubble Chart in Tableau
The sales are now visible. On keeping the mouse cursor on any of the circles, the profit and sales are visible.
Bubble Chart with Measure Color
Above, we saw different colors for each circle. We can also set the same color with different shades. Let us see how.
Drag the Sales into the Color pane of the Marks card:
3. Change the color in the Bubble Chart in Tableau
Change the Bubble Chart color
If you now want to set a different color with the shades, click on the Color, then Edit Colors. After that, the current color will be visible under the Edit Colors [Sales] dialog box:
4. Set a new color for the Bubble Chart in Tableau
Click on the color and change it. Click OK after changing the color
5. Select a new color for the Bubble Chart in Tableau
The color changed. After that, click Apply, and then OK: Now, the new color of the circles is visible:
6. New color set for the Bubble Chart in Tableau
Change the label font
On the circle with the least size, the label is not visible. The reason is quite obvious i.e. the size of the circle is too small. For that, let us change the font size of the label.
Click on the Label and then under Label Appearance, go to Font and change it:
7. Set the font size for the labels in Bubble Chart in Tableau
Set a new font like this:
8. Change the font size for the Tableau Bubble Chart
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