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# Introduction to Data Visualizations

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Introduction to Data Visualizations

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• Thanks for uploading this man. I have shown it to a quite a few people. Another elegant case of taking complex concepts and making them easily digestable. Excellent.

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### Introduction to Data Visualizations

1. 1. VISUALIZING DATA by joel laumans
2. 6. “ Data graphics visually display measured quantities by means of the combined use of points, lines, a coordinate system, numbers, symbols, words, shading, and color.” Edward R. Tufte
3. 7. Don’t just substitute tables, data visualizations should do much more !
4. 9. “ Excellence in statistical graphics consists of complex ideas communicated with clarity, precision, and efficiency .” Edward R. Tufte Graphical Excellence
5. 10. Edward R. Tufte What data graphics should do: Show the dataDon’t distort the dataMake large data sets coherentServe a clear purposeReveal data at different levels (overview - detailed)
6. 11. Be accurate Lie Factor size of effect shown in graphic size of effect in data
7. 12. Be accurate Lie Factor size of effect shown in graphic size of effect in data
8. 13. Be accurate Lie Factor size of effect shown in graphic size of effect in data
9. 14. geographic other How is your data organized? linear tabular hierarchical networked from Jenifer Tidwell
10. 16. from Jenifer Tidwell Find numbers greater than 1.0
11. 17. from Jenifer Tidwell Find numbers greater than 1.0
12. 18. “ Certain visual features operate ‘ preattentively :’ they convey information before the viewer pays conscious attention.” Jenifer Tidwell
13. 19. 8 preattentive variables
14. 20. color hue
15. 21. position and alignment
16. 22. color brightness
17. 23. orientation
18. 24. color saturation
19. 25. size
20. 26. texture
21. 27. shape
22. 29. www.processing.org
23. 31. Visitors Linear
24. 32. Visitors Cartographic
25. 33. any questions?