Download - Data visualization workshop
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UNIVERSITY OF WASHINGTON
Data visualization workshop
Peter Speyer Kyle Foreman
Director of Data Development PhD Candidate
IHME Imperial CollegeJune 18, 2013
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Agenda
• Introduction
• Interactive visualizations
• GBD visualizations: examples in a research setting
• The main steps for visualizing data
• Practical example
• Final questions
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Why do we visualize data?
Review data
• Make sense of large amountsof data
• Explore patterns and trends
• Evaluate research results
• Find stories
Communicate results
• Make data engaging
• Cut through the clutter
• Let users explore the data
• Use for presentations
• Tell stories
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4John Snow’s map of cholera cases in London, 1854
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5Florence Nightingale, Deaths on Crimean Peninsula, 1858
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6Charles Joseph Minard’s map of Napoleon’s Russian campaign of 1812, published 1869
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7Gapminder World, http://www.gapminder.org, founded 2005
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“People are generally better persuaded
by the reasons
which they have themselves discovered
than by those
which have come into the mind of others”
Blaise Pascal
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Agenda
• Introduction
• Interactive visualizations
• GBD visualizations: examples in a research setting
• The main steps for visualizing data
• Practical example
• Final questions
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Agenda
• Introduction
• Interactive visualizations
• GBD visualizations: examples in a research setting
• The main steps for visualizing data
• Practical example
• Final questions
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Global Burden of Disease 2010 - Results
291 causes/4 hierarchical levels
67 risk factors/2 levels
21 age groups (3 infant age groups, 1-4, 5-9… 75-79,
80+)
Female/male/both
187 countries
1990, 2005, 2010
4 key metrics (deaths, YLLs, YLDs,
DALYs)
Uncertainty bounds 12
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Use of visualizations for research
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Improving the research work flow:
Mortality Visualization
COD Visualization
Review results:
GBD Compare
Share results & tell stories:
GBD Cause Patterns
GBD Arrow Diagrams
Evaluating policy impact:
Benchmarking tool
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Agenda
• Introduction
• Interactive visualizations
• GBD visualizations: examples in a research setting
• The main steps for visualizing data
• Practical example
• Final questions
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Be clear about your objectives
• What do I want to do/ communicate?
• Am I telling a story or letting users explore?
• What is my audience? How much do they know about the topic? About statistics? About visualizations?
15HikingArtist via Flickr
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Prepare the data
• Identify all relevant available data
• Become intimate with your dataset(s): metrics, units, dimensions, uncertainty
• Prepare data: Excel, Google Refine, Data Wrangler, AP’s Overview
16Kikishua via Flickr
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Build it
• Select the right type of visual– Highlight your point
– Keep it simple
• Select the degree of interactivity
• Select the right visualization tool:start simple– Excel
– Public tools: Google Motion Charts,Tableau Public, ArcGIS.com
– Custom coding: D3.js, Highcharts
– Maps: visualization vs. GIS
17Edwc via Flickr
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Final thoughts
• Facilitate viral communication– Permalinks
– Social media integration
– Embedding visualizations
– Download screenshot
• Working with software developers– Requirements
– Testing
– Documentation
– Priorities
18ocean.flynn via Flickr
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How do I know if I succeeded?
19Mr. Aktugan via Flickr
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Further reading & inspiration
• http://flowingdata.com/
• http://blog.visual.ly/
• http://www.informationisbeautiful.net/
• http://www.visualcomplexity.com/vc/
• http://visualization.geblogs.com/
• http://eagereyes.org/
• http://chartporn.org/
• http://worldbank.tumblr.com/
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Agenda
• Introduction
• Interactive visualizations
• GBD visualizations: examples in a research setting
• The main steps for visualizing data
• Practical example
• Final questions
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Questions?
http://ihmeuw.org/gbd
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