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NCompass Live: January 13, 2010.

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- 1. Presenting Data in Meaningful and Interesting Ways January 13, 2010
- 2. <ul><li>Our Agenda </li></ul><ul><li>Introduction </li></ul><ul><li>What is Your Message? Who is Your Audience? </li></ul><ul><li>Rules of Data Presentations </li></ul><ul><li>Make the Data Speak by Using the Right Method of Presentation </li></ul><ul><ul><li>Tables </li></ul></ul><ul><ul><li>Chart Selection Tools </li></ul></ul><ul><ul><li>Chart Basics </li></ul></ul><ul><ul><li>Charts and Graphs </li></ul></ul><ul><li>Other Presentation Tools </li></ul><ul><ul><li>Dashboards & Summaries </li></ul></ul><ul><ul><li>Map Mashups </li></ul></ul><ul><ul><li>Narratives with Numbers </li></ul></ul><ul><ul><li>Pocket Guides </li></ul></ul><ul><li>Final Tips </li></ul><ul><ul><li>Using Excel With Care </li></ul></ul>
- 3. Help yourself to some coffee and donuts
- 4. Ask Yourself: What is my Message? “ The information that’s stored in our databases and spreadsheets cannot speak for itself. It has important stories to tell and only we can give them a voice.” -Stephen Few
- 5. And…Who is My Audience ?
- 6. <ul><li>Rules of Data Presentations </li></ul><ul><li>Be Clear </li></ul><ul><li>Keep it Simple </li></ul><ul><li>Keep it Brief </li></ul><ul><li>Make Sure it’s Accurate </li></ul><ul><li>Frame it with Context & Meaning </li></ul>
- 7. Clarity “ Above all else show the numbers.” -Edward Tufte
- 8. Simplicity “ Simplicity is the ultimate sophistication” -Leonardo da Vinci
- 9. Brevity
- 10. Accuracy
- 11. Context & Meaning Attendance at Cornhusker Memorial Stadium 2008 = 595,490 Visits to Nebraska Public Libraries 2008 = 8,606,618 , which would fill the stadium 106 times.
- 12. Finally… “ It all boils down to Communication ” -Stephen Few
- 13. A Financial Table with Highlighted Cells
- 14. http://www.juiceanalytics.com/chartchooser/ Which Chart Should I Use?
- 16. http://www.visual-literacy.org/periodic_table/periodic_table.html Another Guide to Choosing Charts, Graphs, and Other Ways of Presenting Data
- 17. A Simple Table of Data Charts Chart Type Typical Applications Notes Line Charts - Find and compare trends, - Display a change in direction, - Compare two data series over time - Show correlation - Show rise & fall of values over time In a time series, the category spacing on the x-axis should be proportional. Only use line charts when the x-axis variable is continuous (time, distance, etc.). Area Charts - Display data change over time - Compare two or more quantities Based on line charts, but shows magnitude better. Column Graphs - Show frequency distribution (histogram) - Show comparison of data sets - Show relationship between data series Multiple columns can be used to present data for several variables. Avoid stacked bar charts. Bar Charts - Good for ranking data sets - Show comparison of data sets To highlight high values, sort in descending order, to emphasize low values, sort in ascending order Pie Charts - Compare data sets as percentages of a whole Popular, but has limitations. Use no more than five “slices.” Label the slices themselves instead of using a legend. If the values are close, distinctions will be difficult to decipher. Our eyes are great at comparing line lengths, but can’t judge angles very well.
- 18. A Primer: Chart Basics The x Axis – for Categorical Information – Providing Context for the Data The y Axis Used for Quantitative Information – Your Data
- 20. A Line Chart Used as a Time Series Stressing Direction
- 21. A Bar Chart Used as a Time Series Stressing Magnitude
- 22. A Line Chart – Used as a Comparison of 2 Data Sets
- 23. The Same Line Chart as an Area Chart
- 24. A Column Chart Used as a Histogram to Show Frequency Distribution
- 25. Bar Chart – Used to Show Ranking
- 26. The Ubiquitous Pie Chart
- 27. The Same Data in a Bar Chart
- 28. Or Use a Square Pie Chart or Waffle Chart
- 29. Is This the World’s Worst Pie Chart?
- 30. Or Maybe It’s This One…
- 32. Business Dashboard Example
- 33. A Dashboard/Summary Hybrid
- 34. http://www.nlc.state.ne.us/statistics/LibraryMap.html
- 35. http://www.nlc.state.ne.us/statistics/BroadbandMap.html
- 39. Pocket Guides
- 41. Thanks for Participating!
- 42. Remember These Web Pages <ul><li>http://www.nlc.nebraska.gov </li></ul><ul><li>http://www.nlc.nebraska.gov/blogs/nlc/index.html </li></ul><ul><li>http://www.nlc.nebraska.gov/statistics/ </li></ul><ul><li>http://www.nlc.nebraska.gov/ncompass/ncompasslive.asp </li></ul>

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funny how 2012 election chart got to the presentation published in 2010.