Exploratory Visual Data Analysis
Preface
0.1
Pedigogical Plan
0.2
Data Sources
0.3
Introduction
Data Issues
1
Data Wrangling
1.1
Introduction
1.1.1
Tidying
1.1.2
Cleaning
1.1.3
Use
1.2
Tableau
1.3
Importing data
1.4
Tidying or Reshaping
1.4.1
Gather
1.4.2
Spread
1.4.3
Column Splitting
1.4.4
New Column via Calculation
1.4.5
Aggregation
1.4.6
New Column with Aggregation
1.4.7
Unions
1.4.8
Joins
1.5
Exercises
2
Graphing Principles
2.1
Elementary Perception Tasks
2.2
Groupings / Gestalt
2.2.1
Grouping Examples
2.2.2
Example: Warpbreaks
2.3
“Color” Scales
2.4
Exercises
3
Amounts & Proportions
3.1
Introduction
3.2
Example 1
3.3
Example 2
3.4
Tableau Toolbox
3.5
Example 3
3.6
Proportions
3.7
Single Set
3.7.1
Pie Charts
3.7.2
Stacked Bar
3.7.3
Side-by-side Barchart
3.8
Multiple Sets of Proportions
3.8.1
Faceted Bar charts
3.8.2
Side-by-Side Stacked Barcharts
3.8.3
Mosiac plots
3.8.4
Alluvial Plots
3.8.5
Tree graphs
3.9
Exercises
4
Distributions
4.0.1
Small samples
4.0.2
Histograms
4.0.3
Density plots
4.0.4
Faceting
4.0.5
Stacking
4.0.6
Overlapping curves
4.1
Many distributions
4.1.1
Boxplots
4.1.2
Ridge Plots
4.1.3
Violin Plots
4.2
Exercises
5
X-Y Relationships
5.1
Scatter plots
5.1.1
Pairs plots (All-vs-all scatterplots)
5.2
Correlation Plots
5.2.1
Pearson’s Correlation Coefficient
5.3
Overplotting
5.3.1
Transparency
5.3.2
Intensity Maps
5.3.3
Contour Plots
5.4
Regression Lines
5.5
Plot building process
5.6
Exercises
6
Geographic
6.1
Projections
6.2
Map Layers
6.3
Chloropleths
6.4
Chloropleths in Tableau
6.5
Exercises
7
What to Graph
7.1
Examples
7.1.1
Example: Vehicle Deaths
7.1.2
Example: Military Budgets
7.1.3
Example: GDP
7.1.4
Example: Cummulative Iphone Sales
7.1.5
Example: Disease Mortality vs Fatality Rates
7.1.6
Seasonal Unemployment
7.1.7
Example: Age Standardization
7.1.8
Example Maternity Deaths
7.2
Exercises
8
Finding Data
8.1
Examples
8.2
Classroom Discussion Topics
8.2.1
Bicycle Safety
8.2.2
Asthma prevalance
8.3
Exercises
9
Thinking Conditionally
9.1
Simple Examples
9.1.1
Gender Bias in Admission Rates.
9.1.2
Kidney Stone Treatment
9.1.3
Build your own
9.1.4
In Practice
9.1.5
Corona Virus Example
10
Presentations
10.1
Introduction
10.2
Audience
10.3
Outline
10.4
Figures
10.5
Presentations
11
Dashboards
11.1
Introduction
11.2
Examples
11.2.1
Covid-19 Example
11.2.2
A history of World Civilizations
11.2.3
Rainforest Biodiversity
11.2.4
Oil Rigs in Texas
11.2.5
Women in Politics
11.2.6
Taxi Rides in NYC
11.3
Deeper Thoughts
11.3.1
Geographic Aggregation Level
11.3.2
Miscellaneous Aggregation Levels
11.3.3
The “Me” Layer
11.4
Tableau Example
11.4.1
Data
11.4.2
Tableau
11.5
Exercises
12
Critiques!
12.1
Some Final Graphs
12.2
Final Projects
13
Malicious Graphics
13.1
Dual Y-Axes
13.2
Examples of bad graphs
13.3
Cherry Picking Issues
STA 141 - Exploratory Data Analysis and Visualization
Data Issues