Day 64 of 180 Days of Data Viz Learning #jfdi

I’m doing some form of data visualization learning for 180 days because I need to #JFDI.  See post explaining how and why I’m doing this.

Reading and Learning Data Visualization Theoretically/Critically:

Reading Nathan Yau’s book Data Points – Visualization that Means Something

p. 87-105 The Medium and Representing Data

Three Takeaways

  • The four parts of visualization are visual cues (shapes, colors, sizes), coordinate system, scale, and context p.95
  • One danger using shapes and area (eg comparing sizes of two circles) is that there are often mistakes in increasing the area-> eg increasing sides of square by 50% rather than area by 50%, where you end up with an increase in 125%. p. 101
  • The coordinate system used by pie charts is the polar system -> coordinates are placed on the radius r and angle 0 – > dude who knew p. 105

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