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Edward Tufte’s ‘Slopegraphs’

July 17, 2011 1 comment

In his 1983 book The Visual Display of Quantitative Information, Edward R. Tufte displayed a new type of data graphic. He was completely ignored.

Last month Tufte reintroduced the graph to the world, now christened as “Slopegraphs.” “Slopegraphs compare changes over time for a list of nouns located on an ordinal or interval scale.”

Charlie Park followed up with an extensive examination. “Any time you’d use a line chart to show a progression of univariate data among multiple actors over time, you might have a good candidate for a slopegraph.”