Data Viz 101
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Creating Effective Visualizations. Slide deck for my SQL Saturday talk. 8-12-2017. Jacksonville, FL.
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Data Viz 101
- 1. DataViz 101 Creating effective visualizations
- 2. Haim Shternshus DataViz 101 Haim Shternshus QualityManager SQL Data Math Tableau Mechanical Engineer Analytics DataVisualization Intelligence Analyst Spreadsheets Dashboards Metrics Excel Statistics Scorecards Self-Taught Programmer Project Management Human Resources Officer Speaker/Trainer
- 3. DataViz 101 Haim Shternshus Why are we here? We are surrounded by data work schoolmedia
- 4. DataViz 101 Haim Shternshus Why are we here? Best Practices learn new practices eliminate bad practices improve existing practices
- 5. DataViz 101 Haim Shternshus Definitions Data “factual information (such as measurements or statistics) used as a basis for reasoning, discussion, or calculation” Merriam-Webster . data à plural (singular is datum)
- 6. DataViz 101 Haim Shternshus Definitions Data Visualization a general term that describes any effort to help people understand the significance of data by placing them in a visual context Graphs Charts Presentations Colors Schematics
- 7. DataViz 101 Haim Shternshus Definitions DataViz the way cool people refer to Data Visualization
- 8. DataViz 101 Haim Shternshus Data Challenge 1 2 9 4 7 3 8 2 6 3 0 5 1 6 9 7 4 2 4 3 1 6 9 7 5 3 2 9 7 1 9 0 7 4 2 3 2 7 9 8 8 8 5 3 1 2 0 7 3 2 f 7 9 4 8 4 2 3 1 7 6 4 3 8 8 9 0 6 e 2 4 8 3 3 2 1 1 9 5 8 2 9 9 4 9 4 9 5 3 2 1 7 1 2 7 2 4 9 7 5 7 2 6 7 9 0 3 y 2 3 2 6 4 1 5 9 7 6 4 3 0. 1 2 9 4 7 3 8 2 6 3 0 5 1 6 9 7 4 2 4 3 1 6 9 7 5 3 2 9 7 1 9 0 7 4 2 3 2 7 9 8 8 8 5 3 1 2 0 7 3 2 f 7 9 4 8 4 2 3 1 7 6 4 3 8 8 9 0 6 e 2 4 8 3 3 2 1 1 9 5 8 2 9 9 4 9 4 9 5 3 2 1 7 1 2 7 2 4 9 7 5 7 2 6 7 9 0 3 y 2 3 2 6 4 1 5 9 7 6 4 3 0. 1 2 3 4 5 6 7 8 9 10
- 9. DataViz 101 Haim Shternshus So, why do we need it? Easily (and quickly) view and digest data Identify trends and outliers Important vs. trivial Complex to simple
- 10. DataViz 101 Haim Shternshus Our data This is Maya and she has 101 friends Ø distribution by school Ø boys vs. girls Ø time trend Ø favorite colors
- 11. DataViz 101 Haim Shternshus Garbage in, garbage out… School Girls Boys Cunningham Creek Elementary 12 1 Durbin Creek Elementary School 20 2 Fruit Cove Middle School 7 2 Hickory Creek Elementary 13 3 Creekside High School 1 Hickory Creek Elementary School 9 6 Loretto 3 1 Patriot Oaks Academy 8 4 Switzerland Point Middle School 6 Timberlin Creek Elementary 3 Grand Total 82 19
- 12. DataViz 101 Haim Shternshus Garbage in, garbage out… School Girls Boys Cunningham Creek Elementary 12 1 Durbin Creek Elementary School 20 2 Fruit Cove Middle School 7 2 Hickory Creek Elementary 13 3 Creekside High School 1 Hickory Creek Elementary School 9 6 Loretto 3 1 Patriot Oaks Academy 8 4 Switzerland Point Middle School 6 Timberlin Creek Elementary 3 Grand Total 82 19
- 13. DataViz 101 Haim Shternshus Garbage in, garbage out… School Girls Boys Cunningham Creek Elementary 12 1 Durbin Creek Elementary School 20 2 Fruit Cove Middle School 7 2 Creekside High School 1 Hickory Creek Elementary School 22 9 Loretto 3 1 Patriot Oaks Academy 8 4 Switzerland Point Middle School 6 Timberlin Creek Elementary 3 Grand Total 82 19
- 14. DataViz 101 Haim Shternshus Let’s start with a bar chart
- 15. DataViz 101 Haim Shternshus Let’s start with a bar chart
- 16. DataViz 101 Haim Shternshus Let’s start with a bar chart
- 17. DataViz 101 Haim Shternshus Let’s start with a bar chart Number of Friends per School
- 18. DataViz 101 Haim Shternshus Let’s start with a bar chart Number of Friends per School
- 19. DataViz 101 Haim Shternshus Data-to-Ink ratio Number of Friends per School
- 20. DataViz 101 Haim Shternshus Stacked bar chart 100% chart
- 21. DataViz 101 Haim Shternshus Stacked bar chart
- 22. DataViz 101 Haim Shternshus Stacked bar chart
- 23. DataViz 101 Haim Shternshus Line chart
- 24. DataViz 101 Haim Shternshus Line chart
- 25. DataViz 101 Haim Shternshus Line chart
- 26. DataViz 101 Haim Shternshus Line chart
- 27. DataViz 101 Haim Shternshus The infamous pie chart
- 28. DataViz 101 Haim Shternshus The infamous pie chart
- 29. DataViz 101 Haim Shternshus The infamous pie chart other
- 30. DataViz 101 Haim Shternshus The infamous pie chart other
- 31. DataViz 101 Haim Shternshus The infamous pie chart other
- 32. DataViz 101 Haim Shternshus The infamous pie chart other 19%
- 33. DataViz 101 Haim Shternshus Less popular charts
- 35. DataViz 101 Haim Shternshus So far…
- 36. DataViz 101 Haim Shternshus Scatter plot
- 37. DataViz 101 Haim Shternshus Heat map
- 38. DataViz 101 Haim Shternshus Heat map
- 41. DataViz 101 Haim Shternshus Title matters Number of New Friends per YearDid Maya Reach a Friend-Saturation Point? § provocative / interesting § adding new information 2014 Was an Awesome Year § emphasizing what’s important § what are we looking at?
- 42. DataViz 101 Haim Shternshus Show us what you got Country Female Male USA 128 119 Germany 104 102 Netherlands 104 101 Ireland 95 99 Australia 99 93 How much sugar do we consume? (grams per day) Selfie time…
- 43. DataViz 101 Haim Shternshus Americans lead world in sugar consumption [grams per day]
- 44. Thanks for attending! your feedback is appreciated