data visualisation by olivier lorrain
DESCRIPTION
Talk at the Wellington Web Design Meetup on April 8, 2010. Data visualization is used to communicate : To make a point, to form a hypothesis, to help achieve a goal.TRANSCRIPT
“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
Source: www.census.gov/ipc/www/idb/informationGateway.php
Impact of One child policy 1979
China’s Population: 1 330 000 000
India’s Population: 1 173 000 000
Source: www.census.gov/ipc/www/idb/inform
ationGateway.php
Which country will be the most populous in 2030?
Temperature (C)
Task in a Power plant: Monitor Temperature of Liquid B
56.2
Digital
Dial
Temperature (C)
0
10
20
30
40
50
60
70
80
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
Temperature of Liquid BTemperature (C)
Time (min)
Task in a Power plant: Monitor Temperature of Liquid B
Threshold
Threshold
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
Toby Segaran - Corporate map: http://dev.mqlx.com/~toby/corporate_map.png
Growth of WalMart blog.kiwitobes.com/?p=51
Address Year
1210 Giant Drive 1962
1238 Doit road 1963
18 34th Ave 1963
388 Space road 1963
239 Alabama road 1964
908 Weist St 1964
76 Soda Road 1964
72 Wato road 1964
56 St John St 1965
7298 Brooks road 1965
236 Fride 1965
3800 US stores in 2005
A
B
C
D
E
A
B
C
D
E
A
B
C
D
E20
7
15
20
38
Visual bias – Avoid 3D graphs
0 5 10 15 20 25 30 35 40
A
B
C
D
E
Source: www.solidsourceit.com/products/SolidSX-source-code-dependency-analysis.html
More about beauty then useful
Data visualisation could be a powerful communication tool
Always bear in mind the users / audience of the data visualisation
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
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