Data Visualisation·Data Visualisation essentials

Encoding

Position and length are easier to compare than angle and area.

Beginner 10 min read Lesson 2 of 150 Challenge included
What you will be able to do
  • Use position for the main comparison.
  • Start bar axes at zero.
  • Avoid 3D effects.

In plain English

Position and length are easier to compare than angle and area.

  • Use position for the main comparison.
  • Start bar axes at zero.
  • Avoid 3D effects.
encoding.pyPython
plt.barh(courses, minutes)
plt.xlabel('Minutes')
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Answer from memory: Why start bar charts at zero?

TEXT · starter
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Knowledge checkQuestion 1

Why start bar charts at zero?

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