Visualizations - How to choose the best charts and graphs to support your data

Transcription

1 Visualizations - How to choose the best charts and graphs to support your data Jessica Murguia Mamta Chirmade

2 Agenda The Need for Data Visualization Types and Functions of Data Visualization The Data You Have Getting to Know your Role Getting to know the Data Visualizations Questions and Answers 2

3 Audience Poll Getting to know you

4 Audience Poll Live Voting results 4

5 Audience Poll Live Voting results 5

6 Audience Poll Live Voting results 6

7 The Need for Data Visualization Why do we visualize data? Numbers have an important story to tell. They rely on you to give them a clear and convincing voice. Stephen Few, Now You See It: Simple Visualization Techniques for Quantitative Analysis 7

8 The Need for Data Visualization 8

9 The Need for Data Visualization 9

10 The Need for Data Visualization 10

11 The Need for Data Visualization 11

12 Audience Poll Let s have some fun!

13 Which table makes it easy to tell: How many times does the number 89 appear? A B

14 Audience Poll Live Voting results 14

15 Which image makes it easier to compare these numbers 15012, 8271, 30193, 1189, 9913, 16000, 92481, 49801, , 2910, 3809, 8018, 61528, 18083, 38691, 1800 A B Image taken from: David Newbury s presentation on Data Visualization

16 Audience Poll Live Voting results 16

17 Which graph is easier to spot the trend on? A B

18 Audience Poll Live Voting results 18

19 What would you use for visualizing? 1. Identifying most often searched words on your website 2. Contribution of individual Regions to Company total 3. Contribution of individual Regions to Company total over time

20 Agenda The Need for Data Visualization Types and Functions of Data Visualization The Data You Have Getting to Know your Role Getting to know the Data Visualizations Do s and Don ts Questions and Answers 20

21 Types and Functions of Data Visualization What is the purpose of your visualization? Interactive Exploratory Explanatory Static 21

22 Types and Functions of Data Visualization Explanatory vs. Exploratory Explanatory: You are telling a story that would be hard to tell otherwise Exploratory: You are trying to understand what you don t know 22

23 Agenda The Need for Data Visualization Types and Functions of Data Visualization The Data You Have Getting to Know your Role Getting to know the Data Visualizations Do s and Don ts Questions and Answers 23

24 Understand Your Data Know your data to visualize it correctly Qualitative (Attributes) Quantitative (Metrics) Nominal Data o o o o Defines, Describes or Identifies can be counted can t be ordered can t be aggregated Ordinal Data o o o o Indicates Position or Order can be counted can be ordered can t be aggregated Cardinal Data o o o o Quantifies, Counts or Measures can be counted can be ordered can be aggregated o Examples: Product (Books, Movies) Gender City o Examples: Date or Time Rank Grade (A, A+, B-) o Examples: KPIs Counts Measures 24

25 Agenda The Need for Data Visualization Types and Functions of Data Visualization The Data You Have Getting to know your Role Getting to know the Data Visualizations Do s and Don ts Questions and Answers 25

26 Getting to know Your Role Creators and Consumers of Visualized data products Creators IT Teams Business Power Users Business Analysts Consumers Business users External Customers Executives Types of Analysis Current State of Business Trends Comparisons Relationships Geospatial Analysis Correlations Projected Performance Unstructured Data/Ad-hoc analysis What if scenarios Explorations 26

27 Agenda The Need for Data Visualization Types and Functions of Data Visualization The Data You Have Getting to know your Role Getting to know the Data Visualizations Do s and Don ts Questions and Answers 27

28 Getting to know Data Visualizations Type of Analysis: Current State of Business Example: Micro-charts Other Visualizations: Grids Simple graphs Pie Charts Text boxes with formatting 28

29 Getting to Know The Visualizations Time Visualizations Time Few Periods Many Periods Single of Few Categories Many Categories Clustered Bar Chart Line Graph Line Graph 1 Ordinal Attribute, 2+ Metrics 1 Ordinal Attribute, 1 Nominal Attribute, 1+ Metrics 29

30 Getting to know Data Visualizations Type of Analysis: Comparisons Comparison Few Categories Many Categories Few Items Many Items Clustered Bar Chart Bar Chart Bar Chart Matrix 1 Attribute, 2 Metrics 1 Attribute, 1 Metric 2+ Attribute, 1+ Metrics 30

31 Getting to Know The Visualizations Type of Analysis: Relationship: Part-to-whole Visualizations Part-to-whole Few Categories Many Categories Parts of Categories Pie Chart Heat Map 100% Stacked Bar 1 Attribute, 1 Metric 1+ Attributes, 1+ Metrics 2+ Attributes, 1 Metric 31

32 Getting to Know The Visualizations Type of Analysis: Relationship Visualizations Relationship Two Variables Three Variables Related Elements Scatter Plot Bubble Chart Network Graph 1+ Attribute, 2 Metrics 1+ Attribute, 3 Metrics 2 Attributes, 3 Metrics 32

33 Getting to Know The Visualizations Type of Analysis: Geospatial Geography Few Data Points Many Data Points Bubble Map Area Map Marker Map Density Map 1 Geo Attribute, 1 Metric 1 Geo Attribute 33

34 Getting to know Data Visualizations Type of Analysis: Sequential Visualizations Example: Gantt Charts, Calendar 34

35 Getting to know Data Visualizations Type of Analysis: Sequential + Comparisons 35

36 Getting to know Data Visualizations Type of Analysis: Sequential + Comparisons 36

37 Getting to know Data Visualizations Type of Analysis: Flow Analysis Visualizations Example: Tree Visualization, Sankey Visual 37

38 Getting to know Data Visualizations Type of Analysis: Flow Analysis 38

39 Getting to know Data Visualizations Type of Analysis: Explorations

40 Getting to know Data Visualizations Type of Analysis: Explorations Sunburst & Bubble

41 Getting to know Data Visualizations A Recap Interactive Exploratory Explanatory Static 42

42 Questions and Answers MicroStrategy World