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Data Graphics

• Data Graphics visually display measured quantities by means of the combined use of points, lines, a coordinate system, numbers, symbols, words, shading and color.
• Graphics are instruments for reasoning about quantitative information.
• Graphical Excellence is the efficient communication of complex quantitative ideas.
• Graphics ‘reveal’ data
• For analyzing and communicating statistical information, well designed data graphics are usually the simplest and the most powerful method.
• Graphics ‘reveal’ data
• Statistical graphics, just like statistical calculations, are only as good as what goes into them.
• The skills required for the use of abstract, non-representational pictures to show numbers are diverse – the visual-artistic, empirical-statistical, and the mathematical

Notes from The Visual Display of Quantitative Information by Edward R. Tufte