TOP-DOWN DATA ANALYSIS WITH TREEMAPS
Martijn Tennekes, Edwin de Jonge · 2011
Statistics Netherlands produces statistics about the economic activity in The Netherlands. These statistics are based on survey data and administrative sources, such as value added tax (VAT). A recent trend in the production of official statistics is to use a top-down analysis, which means that analysts first analyze high level aggregated data, and then zoom in on a more detailed level when necessary. In this paper, we discuss how treemap visualizations can be used for this top-down approach. We use comparison treemaps and density treemaps. Finally, we introduce a method to visualize confidence intervals in treemaps.