data visualization for non-programmers
TRANSCRIPT
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DATA VIZ 101:Tools , tricks, tips...
...and more for non-programmers and deadline-chasers
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What isdata visualization?Simplest answer = graphical display of information
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WAYMORE COMPLEX"By visualizing information, we turn it into a landscape that you can explore with your eyes, a sort of information map. And when you're lost in information, an information map is kind of useful."
-David McCandless, author, data journalist, information designer.
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"The greatest value of a picture is when it forces us to notice what we never expected to see."
-John Tukey
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"When information was scarce, most of our efforts were devoted to hunting and gathering. Now that information is abundant, processing is more important."
-Phillip Meyer, journalist and professor at UNC, Chapel Hill
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Uses• Get a bird's eye view of "Big Data" information overload
• Discover hidden insights
• Highlight outliers visually
• Understand patterns and trends instantly and visually
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Characteristics... of data viz
• Data itself is the story; standalone narrative (often coupled w/ text).
• Interactive, communicative, visual.
• Ranges from simple (charts) to complex (database-driven applications).
• Both a technique and a format.
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Infographics ≠data visualizationHave different connotations
(Although many, including Alberto Cairo, information design legend, defend the term 'infographic' in its original sense)
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Infographics tend to be...
Hard to readOverly artsy
Distracting from data.
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"He's 243 percent baby
boomer!"Example of "chartjunk"
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What's wrong here?
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Brief history•Grew out of CAR (computer assisted-reporting) tradition
•First major modern use: John Snow’s 1854 cholera map (right)
•Has coincided with the era of “Big Data”
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"There's a strand of the data viz world that argues that everything could be a bar chart. That's possibly true but also possibly a world without joy."
-Amanda Cox, New York Times
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"Data journalism is the new punk. Anyone can do
it."-Simon Rogers, The
Guardian
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BUT HOW?!
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Free, open-source, code-free tools
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Now, let's take a look at some...
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1.
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2.
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3.
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Just a few of dozens of tools to democratize data visualization.
See Edmodoand links for exhaustive resource list.
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Steps for any data viz project:1. Research - Think of topic and research factors.
2. Find - Locate and/or obtain/scrape the data.
3. Analyze - Clean errors, evaluate what data says, crunch numbers,look for trends/inconsistencies.
4. Visualize - Display data in manner most appropriate to nature of story/format of information.
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Now, let's visualize a dataset!
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