Tableau(Tree map in tableau)

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Tree map:

👉  The treemap functions as a visualization composed of nested rectangles. These rectangles represent certain categories within a selected dimension and are ordered in a hierarchy, or “tree.” Quantities and patterns can be compared and displayed in a limited chart space. Treemaps represent part to whole relationships.

👉  Tree Maps are primarily used to display data that is grouped and nested in a hierarchical (or tree-based) structure.

Creating a tree map in tableau:

Use treemaps to display data in nested rectangles. You use dimensions to define the structure of the treemap, and measures to define the size or color of the individual rectangles. Treemaps are a relatively simple data visualization that can provide insight in a visually attractive format.

The basic building blocks for a treemap are as follows:

Mark type:

Automatic or Square

Color:

Dimension or Measure

Size

Measure

Label or Detail:

Dimension(s)

To create a treemap that shows aggregated sales totals across a range of product categories, follow the steps below.

  1. Connect to the Sample - Superstore data source.

  2. Drag the Sub-Category dimension to Columns.

  3. Drag the Sales measure to Rows.

  4. Click Show Me on the toolbar, then select the treemap chart type.

    Tableau displays the following treemap:


  5. Drag the Ship Mode dimension to Color on the Marks card. In the resulting view, Ship Mode determines the color of the rectangles—and sorts them into four separate areas accordingly. Sales determines the size of the rectangles:

  6. Try another option to modify the treemap: click the Undo button to remove Ship Mode from view.

  7. Drag the Profit measure to Color on the Marks card. Now Profit determines the color of the rectangles, and Sales determines their size:

With treemaps, Size and Color are the crucial elements. You can place measures on Size and Color, but placing a measure anywhere else has no effect. Treemaps can accommodate any number of dimensions, including one or even two on Color. But beyond that, adding dimensions only breaks the map into an ever greater number of smaller rectangles.

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