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Treemap

Treemap displays hierarchical (tree-structured) data as nested rectangles. The branches are rectangles, then tiled with smaller rectangles representing sub-branches. Rectangles have areas proportional to a specified dimension of the data using the specified aggregation function (count by default).

Treemap displays all data simultaneously and shows a part-to-whole relationship among many categories. Use a treemap to spot irregularities or patterns.

Tree Map

Adding

  1. Go to Tables and expand the Viewers panel.
  2. Locate the Treemap icon and click it.

Developers: To add the viewer from the console, use: grok.shell.tv.addViewer('Treemap');

Initially, the viewer picks up the first categorical column in the corresponding table and builds a treemap.

Settings

You can set the hierarchy and customize a treemap viewer. To do that, click the Gear icon on top of the viewer and use settings on the Context Pane. For example, you can:

  • Set tree hierarchy
    • Choose the desired column using the drop-downs on top of the viewer.
    • Or, edit the Split by property (drag-and-drop columns to change their order).
  • Select the rows for the treemap display using the Row source dropdown list.
  • Size-code nodes using Size and Size Aggr Type properties.
  • Color-code nodes using Color and Color Aggr Type properties.

Interactivity

  • Shows a subset of rows specified by the Row Source property
  • Shows selected rows in orange
  • Synchronizes current record upon clicking on the point
  • Click on the rectangle selects rows

Treemap

Viewer controls

Action Control
Add node to selection Shift+click the node
Toggle node selection Ctrl+click the node

Videos

Tree Map

See also