? ? ? ? Basic Charts Outline - Distributions & Histograms - - PowerPoint PPT Presentation

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? ? ? ? Basic Charts Outline - Distributions & Histograms - - PowerPoint PPT Presentation

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Basic Charts ? ? ? ? Basic Charts Outline - Distributions & Histograms - Mean, Mode, Average - Chart types - Uncertainty - Pie Charts Distributions Distributions: Binning Distributions: Binning Bin Distributions Distributions

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Basic Charts

? ? ? ?

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Basic Charts

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Outline

  • Distributions & Histograms
  • Mean, Mode, Average
  • Chart types
  • Uncertainty
  • Pie Charts
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Distributions

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Distributions: Binning

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Distributions: Binning

Bin

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Distributions

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Distributions

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Distributions

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Distributions

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Histogram Binning

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Histogram Binning

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Histogram Binning

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Descriptive Statistics

Mode: Median: Mean:

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Descriptive Statistics

Mode: Median: Mean:

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Descriptive Statistics

Mode: Median: Mean:

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Descriptive Statistics

Mode Median Mean

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Standard deviation

Low High

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Visualizing Distributions

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Plotting Distributions

Dot plot/ Beeswarm plot Bar charts + error bars Violin plots Box plots

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Violin plots

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Violin plots: measures

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Violin plots: measures

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Violin plots: measures

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Violin plots: example shapes

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Violin plots for comparison

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Box plots

http://www.stat.cmu.edu/~rnugent/PCMI2016/ papers/ViolinPlots.pdf

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Bar plots + Error bars

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Uncertainty

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Uncertainty

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Comparing plots

! !

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A word on pie charts...

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Bad Pie Charts

  • Too many values
  • Differences hard to understand
  • Distribution?
  • (Confusing colors)
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Bad Pie Charts

  • Too many values
  • Differences hard to understand
  • Distribution?
  • (Confusing colors)
  • Not adding up to 100%
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Pie Charts

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Pie Charts

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Alternatives?

Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019.

Stacked bars Bar chart Pie chart

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Pie Chart Alternatives

Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019. Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019.

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Pie Chart Alternatives

Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019. Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019.

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Pie Chart Alternatives

Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019. Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019.

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Pie Chart Alternatives

Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019. Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019.

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Pie Chart Alternatives

Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019. Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019.

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Pie Chart Alternatives

Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019. Wilke, Claus O. Fundamentals of data visualization: a primer on making informative and compelling figures. O'Reilly Media, 2019.

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Line Charts vs. Bar Charts

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Line Charts vs. Bar Charts?

https://online-behavior.com/analytics/data-visualization

Continuous values Discrete values

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Wrap up

  • Choose appropriate bin-sizes
  • violin plots for compare distributions
  • Label error bars
  • Don't confound box plots and error bars
  • Avoid pie charts
  • Line charts for continuous data
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Further Readings

Fundamentals of data visualization: a primer on making informative and compelling figures Hypothetical outcome plots

  • utperform error bars and violin plots for inferences about reliability of variable
  • rdering

Arcs, angles, or areas: Individual data encodings in pie and donut charts The truthful art: data, charts, and maps for communication