jrl data visualization 14 0327 - columbia university libraries€¦ · why visualize?!...
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Data/Visualiza+on
Jeffrey Lancaster Emerging Technologies Coordinator
Science & Engineering Library, Columbia University
[email protected] @j_lancaster
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Why Visualize?
“You can lie and cheat with data visualiza+on.
“There is an inherent trust in the form.
“Graphs are scien+fic!”
-‐ Jer Thorp -‐
hCps://www.youtube.com/watch?v=ix3grNuYxpA (27:50)
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Why Visualize?
Datavis is easy; the mechanics of it are known. Making an account is easy.
But that doesn’t tell you what happened.
Narra+ve is harder.
hCps://www.youtube.com/watch?v=ix3grNuYxpA (27:50)
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Why Visualize?
“The Ohh-‐Ahh Principle: Ohh! = Visual Ahh! = Learning
“Good datavis requires a balance of
Ohh! and Ahh!”
-‐ Jer Thorp -‐
hCps://www.youtube.com/watch?v=ix3grNuYxpA (27:50)
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Why Visualize?
“Uncertainty in visualiza+on can obfuscate meaning to the reader.”
-‐ Jer Thorp -‐
hCps://www.youtube.com/watch?v=ix3grNuYxpA (27:50)
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Datavis tools hBp://selecFon.datavisualizaFon.ch/ hBp://visual.ly hBp://flowingdata.com/
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A bunch of bad datavis
hCp://simplysta+s+cs.org/2012/11/26/the-‐sta+s+cians-‐at-‐fox-‐news-‐use-‐classic-‐and-‐novel-‐graphical-‐techniques-‐to-‐lead-‐with-‐data
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A bunch of bad datavis
hCp://simplysta+s+cs.org/2012/11/26/the-‐sta+s+cians-‐at-‐fox-‐news-‐use-‐classic-‐and-‐novel-‐graphical-‐techniques-‐to-‐lead-‐with-‐data
The y-‐axis has been truncated to ‘magnify’ differences in values
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A bunch of bad datavis
hCp://simplysta+s+cs.org/2012/11/26/the-‐sta+s+cians-‐at-‐fox-‐news-‐use-‐classic-‐and-‐novel-‐graphical-‐techniques-‐to-‐lead-‐with-‐data
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A bunch of bad datavis
hCp://simplysta+s+cs.org/2012/11/26/the-‐sta+s+cians-‐at-‐fox-‐news-‐use-‐classic-‐and-‐novel-‐graphical-‐techniques-‐to-‐lead-‐with-‐data
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A bunch of bad data(vis)
hCp://simplysta+s+cs.org/2012/11/26/the-‐sta+s+cians-‐at-‐fox-‐news-‐use-‐classic-‐and-‐novel-‐graphical-‐techniques-‐to-‐lead-‐with-‐data
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A bunch of bad datavis
hCp://simplysta+s+cs.org/2012/11/26/the-‐sta+s+cians-‐at-‐fox-‐news-‐use-‐classic-‐and-‐novel-‐graphical-‐techniques-‐to-‐lead-‐with-‐data
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A bunch of bad datavis
hCp://simplysta+s+cs.org/2012/11/26/the-‐sta+s+cians-‐at-‐fox-‐news-‐use-‐classic-‐and-‐novel-‐graphical-‐techniques-‐to-‐lead-‐with-‐data
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A bunch of bad datavis
hCp://simplysta+s+cs.org/2012/11/26/the-‐sta+s+cians-‐at-‐fox-‐news-‐use-‐classic-‐and-‐novel-‐graphical-‐techniques-‐to-‐lead-‐with-‐data
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A bunch of bad datavis
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Activity
What kind of data do you use/create?
What is important about that data?
Who are the actors involved in making that data?
What is the meaning of the data?
What would you like to emphasize about that data?