Relationships

Readings due before class on Tuesday, September 26, 2017

Required

• Chapter 9 in Alberto Cairo, The Truthful ArtAlberto Cairo, The Truthful Art: Data, Charts, and Maps for Communication (Berkeley, California: New Riders, 2016).
  
  
• Chapter 7 in Stephanie Evergreen, Effective Data VisualizationStephanie D. H. Evergreen, Effective Data Visualization: The Right Chart for the Right Data (Thousand Oaks, CA: Sage, 2017).
  
  
• 200 Countries, 200 Years, 4 Minutes
• Two Alternatives to Using a Second Y-Axis & Illusion of success & Dissecting two axes
• Dual-Scaled Axes in Graphs: Are They Ever the Best Solution?Stephen Few, “Dual-Scaled Axes in Graphs: Are They Ever the Best Solution?” Visual Business Intelligence Newsletter, March 2008, http://www.perceptualedge.com/articles/visual_business_intelligence/dual-scaled_axes.pdf.
  
  

Recommended

• Kieran Healy, “Two y-axes”
• “A Study on Dual-Scale Data Charts”Petra Isenberg et al., “A Study on Dual-Scale Data Charts,” IEEE Transactions on Visualization and Computer Graphics 17, no. 12 (2011): 2469–78, doi:10.1109/tvcg.2011.160.
  
  

Questions to reflect on

• How can you correctly and honestly communicate relationships between variables? How can you communicate the uncertainty in those relationships?
• What are the dangers of visualizing two variables?
• When is it appropriate to use two y-axes?