Tree Map

A tree map uses scaled rectangles to visualize the same metric across multiple different groups. You can add further stratify your tree map and add hierarchy using a dimensional column. Here are some examples:

Reference Content

The following articles may be useful resources as you build your chart:

• Creating a Chart: A walkthrough of the overall process of chart selection and creation.
• Using Preset Chart Builder: How to work with the Chart Builder page, the primary interface used when creating a chart.

Creating a Basic Treemap

Preset currently has a few options for treemaps in the visualization picker:

• Treemap v2
• Treemap

We strongly recommend using the Treemap v2 visualization type, as it's newer and supports more features.

To create a Treemap, you need to define:

• the Metrics you want visualized as rectangles
• the Dimension(s) you want to use for partitioning

Below is a simple Treemap:

Here's an explanation of the selections we made in the chart builder interface to generate this chart.

Chart Builder options Like many charts in Preset, start by selecting the Metrics and Dimensions you want to visualize. Unlike the other charts in Preset, choosing a Dimension column is crucial to creating a useful tree map. Dimensions: choose the column you want to be used for partitioning the rows and for powering the GROUP BY in the generated SQL. Metric: choose the metric that's visualized as rectangles in the tree map.

Generated Query

Creating a Hierarchical Treemap

You can add layers of hierarchy into your treemap by choosing multiple dimensional columns.

Here's a breakdown of the selections we made in Chart Builder to generate the chart above.

	Chart Builder options This time, we will use two dimensional columns instead of one. A pairwise GROUP BY will be computed.
	Generated Query

Customizing your Treemap

Under the Customize tab, you can find a number of options for customizing your tree chart further. Here are some of the options:

• Color Scheme: choose the color palette you want used in your chart
• Labels
  • Show Labels: checkbox that shows the metric values as labels if ticked
  • Show Upper Labels: checkbox that shows labels of parent squares in a hierarchical treemap
  • Number Format: how you want the numbers formatted for display
  • Date Format: how you want the date values formatted for display