Data Visualisation by Olivier Lorrain

Data Visualisationinspired by Toby Segaran ~ Webstock
By Olivier Lorrain
April 8, 2010
www.olivierlorrain.com

Data Visualisation
“The main goal of data visualization is its ability to visualize data, communicating information clearly and effectivelty.”
Vital Friedman, editor-in-chief of www.smashingmagazine.com

To Make a Point
Impact of One child policy 1979
Source: www.census.gov/ipc/www/idb/informationGateway.php

To Form a Hypothesis
China’s Population: 1 330 000 000
Which country will be the most populous in 2030?
India’s Population: 1 173 000 000
Source: www.census.gov/ipc/www/idb/informationGateway.php

To Help Achieve a Goal
Task in a Power plant: Monitor Temperature of Liquid B
Temperature (C)
Temperature (C)
56.2
Digital
Dial

To Help Achieve a Goal
Task in a Power plant: Monitor Temperature of Liquid B
Temperature (C)
Threshold
Threshold
Time (min)

7
Gender balance
12% of corporate board members from the sample were female
21% of the lines are women
Cluster
West vs East
Toby Segaran - Corporate map: http://dev.mqlx.com/~toby/corporate_map.png

8
Gender balance
12% of corporate board members from the sample were female
21% of the lines are women
Cluster
West vs East
discover patterns
Toby Segaran - Corporate map: http://dev.mqlx.com/~toby/corporate_map.png

Dull Table or Animated Data
3800 US stores in 2005
Growth of WalMart blog.kiwitobes.com/?p=51

3D Pie Chart

Pie Chart

3D Pie Chart
7
20
38
15
20
Visual bias – Avoid 3D graphs

Bar Chart

Large Network
More about beauty then useful
Source: www.solidsourceit.com/products/SolidSX-source-code-dependency-analysis.html

Helps track expensesvssavings
Source: www.bnz.co.nz

Helps uncover patterns
Source: www.bnz.co.nz

Data visualisation could be a powerful communication tool
Always bear in mind the users / audience of the data visualisation
Key Points

Toby Segaran - http://kiwitobes.com
Gap Minder – Debunking myths about the “third world”
www.gapminder.org/videos/ted-talks/hans-rosling-ted-2006-debunking-myths-about-the-third-world/
Data Visualisation tools
www.yworks.com/en/products.html
www.graphviz.org/
Edward Tufte – Visual Explanationswww.edwardtufte.com/tufte
Further Reading

Free data
Freebase – www.freebase.com
OECD - http://stats.oecd.org/index.aspx
Statistic NZ - http://search.stats.govt.nz/nav/0
Demographic
David Foot, Boom, Bust and Echo - http://www.footwork.com/book.asp
Further Reading

Blog: www.olivierlorrain.com
Flickr: olorrain

Data Visualisation by Olivier Lorrain

by Olivier Lorrain on Apr 10, 2010

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