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Data Visualization and Dashboard Design<br />Columbus Web Analytics WednesdaySeptember 22, 2010<br />Presented by Tim Wils...
Beautiful!<br />2,345<br />5,262<br />2,152<br />3,442<br />4,424<br />5,672<br />5,262<br />2,152<br />3,442<br />4,424<b...
The Single Most UsefulData Visualization Concept<br />Data-Pixel Ratio*<br />=<br />No. of non-white pixels devoted to dat...
Data-Pixel Ratio*<br />=<br />No. of non-white pixels devoted to data<br />Total non-white pixels<br />* Term coined by St...
Redundant info(in this case)<br />Overkill on the size<br />Heavier than needed<br />Adds no value<br />Tough to read at a...
X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<b...
Slightly over $150,000<br />
Slightly over $150,000… but you have to work to figure that out<br />…and needlessly decreases the data-pixel ratio<br />
I defy the laws of light!<br />…and needlessly decreases the data-pixel ratio<br />
Leave 3D to the Movies<br />Source: Image captured from recovery.gov (long since removed, thankfully)<br />
~10%<br />of men in the U.S. have some form of color blindness<br />(and a form of red-green color blindness accounts for ...
On Screen and Color Printout<br />Red = Green<br />Black-and-White Printout<br />
Pie Charts = EVIL!<br />Rainbows Are Good in Princess Tales — Not in Data Visualization<br />Labels, Labels, Labels<br />T...
If you must use a pie chart…<br />…the sum of the parts must be 100%<br />Source: http://www.math.yorku.ca/SCS/Gallery/<br />
Source: Laszlo Thoth, http://tongodeon.livejournal.com/583338.html<br />
Mis…LEADDD…ing!!!<br />
Some Thoughts On Dashboards<br />
Iconic Memory<br />(The “visual sensory register”)<br />Preattentive processing of information<br />Short-term Memory<br /...
Dashboards: Less is More<br />Aim for a single page/screen:<br />The human struggles to process/compare data that is not i...
Source: http://www.microstrategy.com/DashboardGallery/Dashboards/InteractiveSalesOverview.asp<br />
Sparklines<br />“Historical precision” often not necessary<br />Still effectively enables spotting trends, spikes, and dip...
Impressions are down 85% from a year ago<br />Email opens and clickthroughs are dropping<br />Database growth is declining...
Further Reading<br />Information Dashboard Design by Stephen Few<br />Brain Rules by John J. Medina<br />Blogs:<br />Pelti...
Data Visualization Tips and Concepts
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Presentation from the September 2010 Columbus Web Analytics Wednesday. The presenter was Tim Wilson of Resource Interactive. Download the presentation (PPT 2007) for notes embedded in the slides and some useful animations.

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Data Visualization Tips and Concepts

  1. 1. Data Visualization and Dashboard Design<br />Columbus Web Analytics WednesdaySeptember 22, 2010<br />Presented by Tim Wilsontwilson@resource.com<br />
  2. 2. Beautiful!<br />2,345<br />5,262<br />2,152<br />3,442<br />4,424<br />5,672<br />5,262<br />2,152<br />3,442<br />4,424<br />5,672<br />2,345<br />3,442<br />4,424<br />5,672<br />2,345<br />5,262<br />2,152<br />Artist<br />Analyst<br />
  3. 3. The Single Most UsefulData Visualization Concept<br />Data-Pixel Ratio*<br />=<br />No. of non-white pixels devoted to data<br />Total non-white pixels<br />Stephen Few<br />Edward Tufte<br />* Term coined by Stephen Few as a derivation of Edward Tufte’s “data-ink ratio”<br />
  4. 4. Data-Pixel Ratio*<br />=<br />No. of non-white pixels devoted to data<br />Total non-white pixels<br />* Term coined by Stephen Few as a derivation of Edward Tufte’s “data-ink ratio”<br />
  5. 5.
  6. 6. Redundant info(in this case)<br />Overkill on the size<br />Heavier than needed<br />Adds no value<br />Tough to read at an angle<br />Redundant<br />Calibri is a hideous font (IMHO)<br />
  7. 7.
  8. 8. X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />X<br />
  9. 9. Slightly over $150,000<br />
  10. 10. Slightly over $150,000… but you have to work to figure that out<br />…and needlessly decreases the data-pixel ratio<br />
  11. 11. I defy the laws of light!<br />…and needlessly decreases the data-pixel ratio<br />
  12. 12. Leave 3D to the Movies<br />Source: Image captured from recovery.gov (long since removed, thankfully)<br />
  13. 13. ~10%<br />of men in the U.S. have some form of color blindness<br />(and a form of red-green color blindness accounts for over half of these)<br />
  14. 14. On Screen and Color Printout<br />Red = Green<br />Black-and-White Printout<br />
  15. 15.
  16. 16.
  17. 17. Pie Charts = EVIL!<br />Rainbows Are Good in Princess Tales — Not in Data Visualization<br />Labels, Labels, Labels<br />Those Pesky Near-Zero Values<br />Seeing Small Differences… and 1D vs. 2D Perception<br />Economy (of Space) Is a Virtue<br />
  18. 18. If you must use a pie chart…<br />…the sum of the parts must be 100%<br />Source: http://www.math.yorku.ca/SCS/Gallery/<br />
  19. 19. Source: Laszlo Thoth, http://tongodeon.livejournal.com/583338.html<br />
  20. 20.
  21. 21. Mis…LEADDD…ing!!!<br />
  22. 22. Some Thoughts On Dashboards<br />
  23. 23. Iconic Memory<br />(The “visual sensory register”)<br />Preattentive processing of information<br />Short-term Memory<br />(a.k.a. working memory)<br />Limited to 3 to 9 chunks of visual information<br />Long-term Memory<br />Source: Information Dashboard Design by Stephen Few and Brain Rules by John J. Medina<br />
  24. 24. Dashboards: Less is More<br />Aim for a single page/screen:<br />The human struggles to process/compare data that is not in its field of vision (short-term memory limitations)<br />Should provide “at a glance” information – it’s got to be efficient to consume if you expect people to use it<br />Measures included must be tied to objectives and should be organized as such<br />All web analytics vendors have pretty crappy built-in dashboards <br />
  25. 25. Source: http://www.microstrategy.com/DashboardGallery/Dashboards/InteractiveSalesOverview.asp<br />
  26. 26. Sparklines<br />“Historical precision” often not necessary<br />Still effectively enables spotting trends, spikes, and dips<br />Economical use of space…which means more metrics can be digested/compared at once <br />
  27. 27. Impressions are down 85% from a year ago<br />Email opens and clickthroughs are dropping<br />Database growth is declining<br />
  28. 28.
  29. 29.
  30. 30. Further Reading<br />Information Dashboard Design by Stephen Few<br />Brain Rules by John J. Medina<br />Blogs:<br />Peltier Tech Blog (http://peltiertech.com/WordPress/)<br />Presentation Zen by Garr Reynolds (http://www.presentationzen.com/)<br />Flowing Data by Nathan Yau (http://flowingdata.com/)<br />
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Presentation from the September 2010 Columbus Web Analytics Wednesday. The presenter was Tim Wilson of Resource Interactive. Download the presentation (PPT 2007) for notes embedded in the slides and some useful animations.

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