Is There A Visual Thinking App? Charts, Graphs, & The Classroom
A radar chart is a graphical method of displaying multivariate data in the form of a two-dimensional chart of three or more quantitative variables represented on axes starting from the same point. The relative position and angle of the axes is typically uninformative.
Graham Odds: A critique of radar charts, a chart type commonly used to display multivariate data, higlighting how they are poorly designed to effectively communicate information in the underlying data, and presents a number of more effective alternatives.