Lesson02

ISSS608 Visual Analytics and Applications

About

Weekly Session

Assignment

Visual Analytics Project

Course Resources

Fundamentals of Visual Analytics

Lesson Outline

• Visualising Amounts
  • Bar chart
  • Pareto chart
  • Grouped and stacked bars
  • Dot plot
• Visualising Distribution
  • Histogram
  • Density plot
  • Boxplot
  • Notched boxplot
  • Violin plot
  • Q-Q plot
• Visualising Relationships Among Two Continuous Variables
  • Scatter plot
• Visualising Associations Among Two Categorical Variables
  • Mosaic plot
• Visualising Uncertainty
  • Why Visualising Uncertainty?
  • Basic Statistical Concepts Related to Uncertainty
  • Univariate Graphical Methodes for Visualising Uncertainty
    • Error bars
    • Confidence strips
    • Ridge plot
  • Bivariate Graphical Methods for Visuaising Uncertainty

Core Readings

• Claus O. Wilke Fundamentals of Data Visualization. Chapter 6-12 and 16.

Readings

Boxplot

• Understanding Boxplots

Violin Plots

• Violin Plot-wikipedia
• Hintze, Jerry L.; Nelson, Ray D. (1998). "Violin Plots: A Box Plot-Density Trace Synergism". The American Statistician. 52 (2): 181–4

Notched Box Plots

• Notched Box Plots

Dot Plots

• Dot plots
• Dot Plots: A Useful Alternative to Bar Charts

Trellis Display

• The Visual Design and Control of Trellis Display
• Trellis display
• Trellis Displays vs. Interactive Graphics

All About Tableau

White Paper

• Which chart or graphis right for you?
• Good Enough to Great: A Quick Guide for Better Data Visualizations

Tutorial

• Formatting

• The Formatting Pane

• Getting Started with Dashboards and Stories

• Getting Started with Calculation

• Calculation Syntax

• Introduction to LOD Expressions

• Intro to Table Calculations

• Modifying Table Calculations

• Aggregate Calculations

• Date Calculations

• Logic Calculation

• String Calculation

• Number Calculation

• Type Calculation

• Conceptual Topics with LOD Expressions

• Aggregation and Replication with LOD Expressions

• Nested LOD Expressions

Visual Analytics Method(s) of the Week

Diverging Stacked Bar Chart

• Design of Diverging Stacked Bar Charts for Likert Scales and Other Applications
• When Are 100% Stacked Bar Graphs Useful?
• The case against diverging stacked bars
• Are diverging 100% stacked bars useless?
• Rethinking the divergent stacked bar chart — placing the stronger views in the center

Packed Bars

• Introducing packed bars, a new chart form
• rPackedBar: Packed Bar Charts with 'plotly'

Visualising Uncertainty

Optional Readings

• Why It’s So Hard for Us to Visualize Uncertainty
• Visualizing the Uncertainty in Data
• Uncertainty + Visualization, Explained

Visual Analytics Method(s) of the Week

Error Plots

• Error bar
• The dot plot: A graphical tool for data analysis and presentation

Funnel Plots

• Variation and Its Discontents: Funnel Plots for Fair Comparisons
• What are the chances of successful fertility treatment?
• Three-fold variation in UK bowel cancer death rates(?)
• Using funnel plots in public health surveillance
• Graph Makeover: Where same-sex couples live in the US
• Using maps and funnel plots to explore variation in place of death from cancer within London, 2002–2007

All About Tableau

• Showing uncertainty in survey results
• Not a funnel cake, nor funnel charts, it’s funnel plots!
• Funnel Plot in Tableau
• Creating Error Bars or CI Bars
• Standard errors and confidence intervals in Tableau