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Week07Ethics.pptx

Ethics in Data Visualisation Week 07 BUSMGT 708 Communicating Business Insights

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Learning outcomes:

By the end of this session you should be able to

Recognise common issues that may imply a problem with a chart

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Agenda:

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Overview – why do we lie?

How To Spot Common Visualisation Lies

Break the Gestalt

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Overview – why do we lie?

How To Spot Common Visualisation Lies

Break the Gestalt

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http://www.spoon-tamago.com/2016/10/28/hajime-narukawa-authagraph/

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https://thespinoff.co.nz/politics/24-09-2017/a-better-visual-breakdown-of-the-2017-election-results/

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Overview – why do we lie?

How To Spot Common Visualisation Lies

Break the Gestalt

How to spot lies:

Trucated Axis

Dual Axes

It does not add up

Seeing only in absolutes

Limited Scope

Odd Choice of Binning

Area Sized by a Single Dimension

Extra Dimension Just Because

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

Nathan Yau

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How to spot lies: Truncated Axis

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

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How to spot lies: Truncated Axis

Source: https://blog.heapanalytics.com/how-to-lie-with-data-visualization/

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How to spot lies: Truncated Axis

Source: https://tradingeconomics.com/new-zealand/gdp

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How to spot lies: Dual Axes

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

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How to spot lies: Dual Axes

Source: http://tylervigen.com/spurious-correlations

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How to spot lies: It does not add up

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

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How to spot lies: It does not add up

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

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How to spot lies: Seeing only in absolutes

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

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https://venngage.com/blog/misleading-graphs/

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How to spot lies: Seeing only in absolutes

Source: https://xkcd.com/1138/

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How to spot lies: Limited Scope

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

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How to spot lies: Limited Scope

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

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How to spot lies: Odd Choice of Binning

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

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https://venngage.com/blog/misleading-graphs/

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How to spot lies: Area sized by a single dimension

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

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How to spot lies: Area sized by a single dimension

Source: https://www.good.is/infographics/

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How to spot lies: Extra dimensions

Source: https://flowingdata.com/2017/02/09/how-to-spot-visualization-lies/

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How to spot lies: Cumulative Graphs

Source: https://blog.heapanalytics.com/how-to-lie-with-data-visualization/

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How to spot lies: Cumulative Graphs

Source: https://blog.heapanalytics.com/how-to-lie-with-data-visualization/

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https://qz.com/122921/the-chart-tim-cook-doesnt-want-you-to-see/

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https://qz.com/122921/the-chart-tim-cook-doesnt-want-you-to-see/

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Overview – why do we lie?

How To Spot Common Visualisation Lies

Break the Gestalt

https://venngage.com/blog/misleading-graphs/

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https://venngage.com/blog/misleading-graphs/

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https://venngage.com/blog/misleading-graphs/

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https://twitter.com/DataRemixed/status/1494525974980878340/photo/1

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