Data Viz Done Right

March 25, 2018

Makeover Monday: What is the UK's Favorite Chocolate Bar?

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This coming Sunday is Easter so I thought we'd look at the UK's favorite chocolate. As someone new to the UK, the Brits can be quite snobby about chocolate, particularly despising American chocolate. I mean, how can someone NOT love Reese's?

The chart we're making over this week is from CDA.


What works well?

  • The bump chart is a very nice visual display for ranked data.
  • Including the rank as a number at each point.
  • The lines are easy to follow.
  • Labeling both the left and right side so that you don't have to trace the line back to the start when you get to the end.
  • Using a different mark type when the chocolate is not ranked.
  • Simple title and subtitle.

What could be improved?

  • This is a LOT of colors and some of them are very close to each other.
  • Why are there age bands missing?

My Objectives

  • Split each of the age groups out rather than connecting them and then include a total, which is the average across the age groups. I'm making the assumption here that the same number of people were surveyed in each age group. 
  • Display the data as a dot plot along a scale from 0-10 for each chocolate bar for each age group
  • Use a brown theme to go with the connotative color of chocolate
  • Color the values using a brown scale

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