five years of chart reading - junk charts · word cloud “the tag cloud is one of the most...

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+ Function-fitting Forms Kaiser Fung : Junk Charts January 18, 2011 @NY Data Viz Meetup

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Page 1: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

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Function-fitting Forms

Kaiser Fung : Junk ChartsJanuary 18, 2011@NY Data Viz Meetup

Page 2: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

+Junk Charts blogjunkcharts.typepad.com

First post, July 2005

Pioneering chart critique blog

Charts from everyday life

Reconstructed

Artform

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Page 3: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

+Impact

Junk chart has become a popular concept (derived from Tufte’s chartjunk); 41,000 results on Google search

Features: Yahoo! Pick; Science; Kottke.org; Media Bistro; Pollster.com; Portfolio.com; Presentation Zen; Andrew Gelman; Unbossed; CACM; many more

Books: Handbook of Data Visualization; Excel 2007 Charts; The Secret Power of Blogging; Web Analytics 2.0; Discovering Statistics Using SAS (also SPSS)

Reader submissions

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Page 4: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

+Junk Charts Trifecta Checkup

What is the practical question?

What does the chart

say?

What does the data

say?

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Page 5: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

+Self-sufficiency

Graphical elements must add to the data

Corollary: if the entire data set must be printed on the chart, the graphical elements are not self-sufficient

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Page 6: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

+The book

Wider scope than the blog: how to think about data in everyday life?

Stories / concepts

Contemporary

Relevant

Reality of statistical practice

Book Blog: junkcharts.typepad.com/ NumbersRuleYourWorld

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Page 7: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Word cloud

“The tag cloud is one of the most pleasing new charts to appear in recent years.”

“Tag clouds are histograms”, Oct 15 2005. Junk Charts.“Concordance, or tag clouds”, Jan 24 2006. Junk Charts.

“The data itself is nothing more than a frequency table (wedding: 132,356; party: 120,222; etc.) but this presentation is visually appealing and aptly functional.” 

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Page 8: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Tag cloud from circa Oct 2005

Word clouds

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Page 9: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Tag cloud from circa Oct 2005

Don’t sort alphabetically.

Make data proportional to area, not height or length.

Word clouds

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Page 10: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Form: Shape

Cloud

List

Custom

flickr; Political tag clouds blog; BBC; Neoformix

Angular

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Page 11: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Form: Font

Large caps

Script

Serif

Jerry the Punkrat; Kauffan Economic Outlook; Information Access blog

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Page 12: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Form: Color

Jerry the Punkrat; Kauffan Economic Outlook; Information Access blog; Neoformix

Rainbow, dark background

Shades of one color

Black on white

Meaningful background

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Page 13: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Form: Density

Washington Post; Information Access blog

Sparse Dense

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Page 14: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Form: Orientation

Horizontal Mixed

Scattered

Washington Post; BBC; Political tag clouds blog 13

Page 15: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Form: Sort order

Alphabetical Frequency

Unsorted

flickr; BBC; Ronan Lyons blog

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Page 16: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Scale

15Ronan Lyons blog

Page 17: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Scale

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promise

McCain

31

20

1.6

# Length Height Area

184

106

1.7

48

24

2.0

8832

2544

3.5

Ronan Lyons blog

Page 18: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Binning

http://projects.washingtonpost.com/obama-speeches 16

Page 19: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Binning

http://projects.washingtonpost.com/obama-speeches 16

Page 20: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Binning

http://projects.washingtonpost.com/obama-speeches 16

None

Wider bins?

Page 21: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Clustering

Ronan Lyons blog; Neoformix 17

Page 22: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Relative and absolute measures

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Page 23: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

Noise Removal

More than just stop words!

Media Bistro; Washington Post 19

Page 24: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

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Form

Shape

Font

Color

Density

Orientation

Sort order

Function

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Scale

Binning

Clustering

Relative measures

Noise removal

Page 25: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

An Amazing Examplehttp://www.nytimes.com/interactive/2009/01/17/washington/20090117_ADDRESSES.html

Context

Data

Most significant wordsat the top

Relative to average21

Page 26: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

A Function-fitting Form

Comparison across time

Details

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Page 27: Five Years of Chart Reading - Junk Charts · Word cloud “The tag cloud is one of the most pleasing new charts to appear in recent years.” “Tag clouds are histograms”, Oct

+Thank you

Graphics Blog: junkcharts.typepad.comBook Blog: junkcharts.typepad.com/

NumbersRuleYourWorldTwitter: junkchartsEmail: [email protected]

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