What is Data Analysis? Used for college curriculum

2. WHAT IS DATA
ANALYSIS?

3. VISUAL ANALYTICS

4. WHAT IS THIS?

5. HOW MANY 8s?
10 8 10 9 10 7 8 6
6 8 8 8 6 8 5
13 7 13 8 13 12 8 7
9 8 9 8 9 7 8 8
11 8 11 9 11 7 8 8
14 9 14 8 14 8 8 7
6 7 6 6 6 6 8 5
4 4 4 3 4 5 19 12
12 10 12 9 12 8 8 5
7 4 7 7 7 6 8 7
5 5 5 4 5 5 8 6

6. HOW MANY 8s?
10 8 10 9 10 7 8 6
6 8 8 8 6 8 5
13 7 13 8 13 12 8 7
9 8 9 8 9 7 8 8
11 8 11 9 11 7 8 8
14 9 14 8 14 8 8 7
6 7 6 6 6 6 8 5
4 4 4 3 4 5 19 12
12 10 12 9 12 8 8 5
7 4 7 7 7 6 8 7
5 5 5 4 5 5 8 6

7. PRE-ATTENTIVE
ATTRIBUTES
OF VISUAL PERCEPTION
⠿ Form
⠕ Length
⠕ Width
⠕ Orientation
⠕ Size
⠕ Shape
⠕ Curvature
⠕ Enclosure
⠕ Spatial Grouping
⠕ Blur

8. PRE-ATTENTIVE
ATTRIBUTES
OF VISUAL PERCEPTION
⠿ Color
⠕ Hue
⠕ Intensity
⠿Spatial Position
⠕ 2D Position
⠿Motion
⠕ Direction

9. VISUAL ANALYSIS
MIGHT SAVE YOUR JOB!
I II III IV
x y x y x y x y
10.0 8.04 10.0 9.14 10.0 7.46 8.0 6.58
8.0 6.95 8.0 8.14 8.0 6.77 8.0 5.76
13.0 7.58 13.0 8.74 13.0 12.74 8.0 7.71
9.0 8.81 9.0 8.77 9.0 7.11 8.0 8.84
11.0 8.33 11.0 9.26 11.0 7.81 8.0 8.47
14.0 9.96 14.0 8.10 14.0 8.84 8.0 7.04
6.0 7.24 6.0 6.13 6.0 6.08 8.0 5.25
4.0 4.26 4.0 3.10 4.0 5.39 19.0 12.50
12.0 10.84 12.0 9.13 12.0 8.15 8.0 5.56
7.0 4.82 7.0 7.26 7.0 6.42 8.0 7.91
5.0 5.68 5.0 4.74 5.0 5.73 8.0 6.89
the mean of the x values is 9.0,
mean of y values is 7.5,
they all have nearly identical variances, correlations, and regression

10. ANSCOMBE’S QUARTET
ANSCOMBE’S QUARTET

11. CYCLE OF VISUAL
ANALYSIS
Incremental
Expressive
Unified Direct
Copyright 2003, Tableau Software, INC.

12. INCREMENTAL
PROVIDE THE OPPORTUNITY TO CHANGE THE DATA
PRESENTED FOR ANALYSIS AND CHANGE THE LEVEL OF
DETAIL

13. EXPRESSIVE
THERE IS NO SINGLE CORRECT VIEW FOR ALL TASKS AND
ALL DATA

14. UNIFIED
STAY IN THE FLOW OF THE CYCLE OF VISUAL
ANALYSIS.
NEW QUESTIONS, NEW DATA, NEW VIEWS, BUT STAY IN THE
FLOW OF THE WORK

15. DIRECT

16. GENERATE EFFECTIVE
VIEWS OF DATA
⠿Communicate all of the data
⠿Communicate only the data
⠿Leverage the human perceptual system
⠿Be understandable
⠿Be interpretable

18. THANK YOU