Understanding and using Tree Maps
How do I read a Tree Map?
Treemaps provide an accessible way for viewers to interpret their data at a glance. Color can represent dimensions (such as categories) or measures (such as KPIs). If used to represent a KPI, a darker color may highlight extremes, high or low. For dimensions, a user might use a categorical palette, assigning a different color for each available shipping mode. For measures, a continuous color palette would show a company’s sales numbers or profit.
When analyzing a tree map for insights, the largest box shows the largest part of the whole, while the smallest box shows the smallest part. For a deeper analysis, These boxes can be nested to show many categories. For example, a box within the “office expenses” data set might display “percentage spent on furniture.” A box nested within that box might display “percentage spent on desks.”